

<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/BusinessCombinations" xlink:href="hwkn-20180401.xsd#BusinessCombinations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/BusinessCombinationsAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:href="hwkn-20180401.xsd#BusinessCombinationsAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/BusinessCombinationsProFormaInformationDetails" xlink:href="hwkn-20180401.xsd#BusinessCombinationsProFormaInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/BusinessCombinationsTables" xlink:href="hwkn-20180401.xsd#BusinessCombinationsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/BusinessCombinationsTextualDetails" xlink:href="hwkn-20180401.xsd#BusinessCombinationsTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CommitmentAndContingenciesTextualDetails" xlink:href="hwkn-20180401.xsd#CommitmentAndContingenciesTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CommitmentAndContingenciesTextualStatement" xlink:href="hwkn-20180401.xsd#CommitmentAndContingenciesTextualStatement" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CommitmentsAndContingencies" xlink:href="hwkn-20180401.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CommitmentsAndContingenciesFutureMinimumOperatingLeasePaymentsDetails" xlink:href="hwkn-20180401.xsd#CommitmentsAndContingenciesFutureMinimumOperatingLeasePaymentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CommitmentsAndContingenciesRentExpenseDetails" xlink:href="hwkn-20180401.xsd#CommitmentsAndContingenciesRentExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CommitmentsAndContingenciesTables" xlink:href="hwkn-20180401.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:href="hwkn-20180401.xsd#CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:href="hwkn-20180401.xsd#CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:href="hwkn-20180401.xsd#CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ConsolidatedBalanceSheets" xlink:href="hwkn-20180401.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="hwkn-20180401.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ConsolidatedStatementsOfShareholdersEquityAndComprehensiveIncomeLossStatement" xlink:href="hwkn-20180401.xsd#ConsolidatedStatementsOfShareholdersEquityAndComprehensiveIncomeLossStatement" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/Debt" xlink:href="hwkn-20180401.xsd#Debt" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DebtDetails" xlink:href="hwkn-20180401.xsd#DebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DebtDetailsTextual" xlink:href="hwkn-20180401.xsd#DebtDetailsTextual" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DebtTables" xlink:href="hwkn-20180401.xsd#DebtTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DerivativeInstruments" xlink:href="hwkn-20180401.xsd#DerivativeInstruments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DerivativeInstrumentsDetails" xlink:href="hwkn-20180401.xsd#DerivativeInstrumentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DerivativeInstrumentsTables" xlink:href="hwkn-20180401.xsd#DerivativeInstrumentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/DocumentAndEntityInformation" xlink:href="hwkn-20180401.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/FairValueMeasurements" xlink:href="hwkn-20180401.xsd#FairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/FairValueMeasurementsDetails" xlink:href="hwkn-20180401.xsd#FairValueMeasurementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/FairValueMeasurementsTables" xlink:href="hwkn-20180401.xsd#FairValueMeasurementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssets" xlink:href="hwkn-20180401.xsd#GoodwillAndIntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsFutureAmortizationDetails" xlink:href="hwkn-20180401.xsd#GoodwillAndIntangibleAssetsFutureAmortizationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsGoodwillRollforwardDetails" xlink:href="hwkn-20180401.xsd#GoodwillAndIntangibleAssetsGoodwillRollforwardDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:href="hwkn-20180401.xsd#GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="hwkn-20180401.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/IncomeTaxes" xlink:href="hwkn-20180401.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:href="hwkn-20180401.xsd#IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/IncomeTaxesIncomeTaxesDeferredTaxAssetsDetails" xlink:href="hwkn-20180401.xsd#IncomeTaxesIncomeTaxesDeferredTaxAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/IncomeTaxesProvisionOfIncomeTaxDetails" xlink:href="hwkn-20180401.xsd#IncomeTaxesProvisionOfIncomeTaxDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/IncomeTaxesTables" xlink:href="hwkn-20180401.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/IncomeTaxesTextualDetails" xlink:href="hwkn-20180401.xsd#IncomeTaxesTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/Inventories" xlink:href="hwkn-20180401.xsd#Inventories" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/InventoriesDetails" xlink:href="hwkn-20180401.xsd#InventoriesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/InventoriesTables" xlink:href="hwkn-20180401.xsd#InventoriesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/InventoriesTextualDetails" xlink:href="hwkn-20180401.xsd#InventoriesTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPolicies" xlink:href="hwkn-20180401.xsd#NatureOfBusinessAndSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesEpsDetails" xlink:href="hwkn-20180401.xsd#NatureOfBusinessAndSignificantAccountingPoliciesEpsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesPolicies" xlink:href="hwkn-20180401.xsd#NatureOfBusinessAndSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesPpeDetails" xlink:href="hwkn-20180401.xsd#NatureOfBusinessAndSignificantAccountingPoliciesPpeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesTables" xlink:href="hwkn-20180401.xsd#NatureOfBusinessAndSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesTextualDetails" xlink:href="hwkn-20180401.xsd#NatureOfBusinessAndSignificantAccountingPoliciesTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlans" xlink:href="hwkn-20180401.xsd#ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlans" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansDetails" xlink:href="hwkn-20180401.xsd#ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansMultiemployerPensionPlansDetails" xlink:href="hwkn-20180401.xsd#ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansMultiemployerPensionPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansTables" xlink:href="hwkn-20180401.xsd#ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansTextualDetails" xlink:href="hwkn-20180401.xsd#ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SegmentInformation" xlink:href="hwkn-20180401.xsd#SegmentInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SegmentInformationDetails" xlink:href="hwkn-20180401.xsd#SegmentInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SegmentInformationTables" xlink:href="hwkn-20180401.xsd#SegmentInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SegmentInformationTextualDetails" xlink:href="hwkn-20180401.xsd#SegmentInformationTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SelectedQuarterlyFinancialDataUnaudited" xlink:href="hwkn-20180401.xsd#SelectedQuarterlyFinancialDataUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" xlink:href="hwkn-20180401.xsd#SelectedQuarterlyFinancialDataUnauditedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/SelectedQuarterlyFinancialDataUnauditedTables" xlink:href="hwkn-20180401.xsd#SelectedQuarterlyFinancialDataUnauditedTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ShareBasedCompensation" xlink:href="hwkn-20180401.xsd#ShareBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ShareBasedCompensationRestrictedAndPerformanceSharesRollforwardDetails" xlink:href="hwkn-20180401.xsd#ShareBasedCompensationRestrictedAndPerformanceSharesRollforwardDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ShareBasedCompensationTables" xlink:href="hwkn-20180401.xsd#ShareBasedCompensationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ShareBasedCompensationTextualDetails" xlink:href="hwkn-20180401.xsd#ShareBasedCompensationTextualDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ShareRepurchaseProgram" xlink:href="hwkn-20180401.xsd#ShareRepurchaseProgram" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ShareRepurchaseProgramDetails" xlink:href="hwkn-20180401.xsd#ShareRepurchaseProgramDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ValuationAndQualifyingAccountsDetails" xlink:href="hwkn-20180401.xsd#ValuationAndQualifyingAccountsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.hawkinsinc.com/role/ValuationAndQualifyingAccountsNotes" xlink:href="hwkn-20180401.xsd#ValuationAndQualifyingAccountsNotes" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/BusinessCombinations" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/BusinessCombinationsAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D5B75670091D56842AE14FE161642A29" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D5B75670091D56842AE14FE161642A29" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_EB640F619BA0C7826F664FE161654036" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_D5B75670091D56842AE14FE161642A29" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_EB640F619BA0C7826F664FE161654036" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_AC9236DC6FBDC1EDE3114FE16165BFB3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_EB640F619BA0C7826F664FE161654036" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_AC9236DC6FBDC1EDE3114FE16165BFB3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_AC9236DC6FBDC1EDE3114FE16165BFB3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_EB640F619BA0C7826F664FE161654036" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_AC9236DC6FBDC1EDE3114FE16165BFB3" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DavisSupplyInc.Member" xlink:label="loc_hwkn_DavisSupplyInc.Member_C0A2BC882A49A077E7A34FE1616530FD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_AC9236DC6FBDC1EDE3114FE16165BFB3" xlink:to="loc_hwkn_DavisSupplyInc.Member_C0A2BC882A49A077E7A34FE1616530FD" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_StauberPerformanceIngredientsMember" xlink:label="loc_hwkn_StauberPerformanceIngredientsMember_DC0B5DDB2370F5567BD84FE16165D8CB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_AC9236DC6FBDC1EDE3114FE16165BFB3" xlink:to="loc_hwkn_StauberPerformanceIngredientsMember_DC0B5DDB2370F5567BD84FE16165D8CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_EEC6CB20340F03F399E54FE16165CA47" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_EEC6CB20340F03F399E54FE16165CA47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_2163807C9FB0C57EFCEB4FE161650A69" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_2163807C9FB0C57EFCEB4FE161650A69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_F10CD119FD6ADDE9770E4FE16165FECD" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_F10CD119FD6ADDE9770E4FE16165FECD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_F30BF82E861438F7B35F4FE161657B7A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_F30BF82E861438F7B35F4FE161657B7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_3E9A9862B1F99288BAE44FE161652C3A" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_3E9A9862B1F99288BAE44FE161652C3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_4686E464E3B2C271933E4FE16165F9C8" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_4686E464E3B2C271933E4FE16165F9C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_0360A07B6597343F2B714FE1616519FA" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_0360A07B6597343F2B714FE1616519FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_B23E471EB6CB7D182FA84FE1616540D9" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_B23E471EB6CB7D182FA84FE1616540D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent_D9FDC604C215BB9C54784FE161658602" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent_D9FDC604C215BB9C54784FE161658602" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_91230581E1144138B36A4FE1616599D0" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_91230581E1144138B36A4FE1616599D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_AEAAE26524BE1A4AECBA4FE161663102" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_AEAAE26524BE1A4AECBA4FE161663102" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_E369D69B34C0FDDA5FB04FE16166BB47" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_Goodwill_E369D69B34C0FDDA5FB04FE16166BB47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_9F30EBBC07BF6F527C154FE16166D5E5" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_9F30EBBC07BF6F527C154FE16166D5E5" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_LessAcquiredCash" xlink:label="loc_hwkn_LessAcquiredCash_AB5B5083196A1A0F8F414FE161665D83" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_hwkn_LessAcquiredCash_AB5B5083196A1A0F8F414FE161665D83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_FD3BB2883AB4874F33874FE161663A51" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_FD3BB2883AB4874F33874FE161663A51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalents" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_F3ECE0EDC1A5555B639E4FE16166DB8B" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C700FBB4947C13E914044FE16165C6FF" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_F3ECE0EDC1A5555B639E4FE16166DB8B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/BusinessCombinationsProFormaInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems_A833748E09A6B22747034FE1615D479F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTable" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTable_2FAF7BF058CBD18D9BBA4FE1615DA22A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems_A833748E09A6B22747034FE1615D479F" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTable_2FAF7BF058CBD18D9BBA4FE1615DA22A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_F74C8B8C39C7D300BF614FE1615D54E9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTable_2FAF7BF058CBD18D9BBA4FE1615DA22A" xlink:to="loc_us-gaap_StatementScenarioAxis_F74C8B8C39C7D300BF614FE1615D54E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_F74C8B8C39C7D300BF614FE1615D54E9" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_F74C8B8C39C7D300BF614FE1615D54E9" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioPreviouslyReportedMember" xlink:label="loc_us-gaap_ScenarioPreviouslyReportedMember_C74A2CB03D512A75E8ED4FE1615D1EAF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862" xlink:to="loc_us-gaap_ScenarioPreviouslyReportedMember_C74A2CB03D512A75E8ED4FE1615D1EAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioAdjustmentMember" xlink:label="loc_us-gaap_ScenarioAdjustmentMember_DD0FA675F62CA3BFB3444FE1615DC34E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862" xlink:to="loc_us-gaap_ScenarioAdjustmentMember_DD0FA675F62CA3BFB3444FE1615DC34E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProFormaMember" xlink:label="loc_us-gaap_ProFormaMember_752F8C174524F5C7B5404FE1615D918D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_D3E2B8A7BFA1FB8EBF8D4FE1615D5862" xlink:to="loc_us-gaap_ProFormaMember_752F8C174524F5C7B5404FE1615D918D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_BC0D4B4F37B0DC66B5D24FE1615DF385" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTable_2FAF7BF058CBD18D9BBA4FE1615DA22A" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_BC0D4B4F37B0DC66B5D24FE1615DF385" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A68FA1F39F99CB3B61F4FE1615D849B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_BC0D4B4F37B0DC66B5D24FE1615DF385" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A68FA1F39F99CB3B61F4FE1615D849B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A68FA1F39F99CB3B61F4FE1615D849B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_BC0D4B4F37B0DC66B5D24FE1615DF385" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A68FA1F39F99CB3B61F4FE1615D849B" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_StauberPerformanceIngredientsMember" xlink:label="loc_hwkn_StauberPerformanceIngredientsMember_82F38FF17BB76105926F4FE1615D2995" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A68FA1F39F99CB3B61F4FE1615D849B" xlink:to="loc_hwkn_StauberPerformanceIngredientsMember_82F38FF17BB76105926F4FE1615D2995" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonrecurringAdjustmentAxis" xlink:label="loc_us-gaap_NonrecurringAdjustmentAxis_EC96FD5A725055C6663B4FE1615DA559" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentsTable_2FAF7BF058CBD18D9BBA4FE1615DA22A" xlink:to="loc_us-gaap_NonrecurringAdjustmentAxis_EC96FD5A725055C6663B4FE1615DA559" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonrecurringAdjustmentDomain" xlink:label="loc_us-gaap_NonrecurringAdjustmentDomain_C07DDF1C911E8E5696474FE1615D8001_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_NonrecurringAdjustmentAxis_EC96FD5A725055C6663B4FE1615DA559" xlink:to="loc_us-gaap_NonrecurringAdjustmentDomain_C07DDF1C911E8E5696474FE1615D8001_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonrecurringAdjustmentDomain" xlink:label="loc_us-gaap_NonrecurringAdjustmentDomain_C07DDF1C911E8E5696474FE1615D8001" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_NonrecurringAdjustmentAxis_EC96FD5A725055C6663B4FE1615DA559" xlink:to="loc_us-gaap_NonrecurringAdjustmentDomain_C07DDF1C911E8E5696474FE1615D8001" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_15BED532BE0C6FAF6BB74FE1615ECF3F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems_A833748E09A6B22747034FE1615D479F" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_15BED532BE0C6FAF6BB74FE1615ECF3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_13697412DF39BB2AE1BF4FE1615E2DDE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems_A833748E09A6B22747034FE1615D479F" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_13697412DF39BB2AE1BF4FE1615E2DDE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_C7366EEE9639CC4BC10B4FE1615E7B0E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems_A833748E09A6B22747034FE1615D479F" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_C7366EEE9639CC4BC10B4FE1615E7B0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_84DFCD8FA43D753336514FE1615EE35A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems_A833748E09A6B22747034FE1615D479F" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_84DFCD8FA43D753336514FE1615EE35A" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/BusinessCombinationsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_55668634E95193EAC004459077EE1915" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0440CD3D2754D6EB3C51459077EDB80D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_55668634E95193EAC004459077EE1915" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0440CD3D2754D6EB3C51459077EDB80D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_63A6E4B4B9778A7D5ACF459077ED22D1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0440CD3D2754D6EB3C51459077EDB80D" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_63A6E4B4B9778A7D5ACF459077ED22D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0AF755E79A0AD48365B3459077ED552C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_63A6E4B4B9778A7D5ACF459077ED22D1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0AF755E79A0AD48365B3459077ED552C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0AF755E79A0AD48365B3459077ED552C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_63A6E4B4B9778A7D5ACF459077ED22D1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0AF755E79A0AD48365B3459077ED552C" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_StauberPerformanceIngredientsMember" xlink:label="loc_hwkn_StauberPerformanceIngredientsMember_F86FFBE46E72D19C7A6F459077EDED98" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0AF755E79A0AD48365B3459077ED552C" xlink:to="loc_hwkn_StauberPerformanceIngredientsMember_F86FFBE46E72D19C7A6F459077EDED98" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DavisSupplyInc.Member" xlink:label="loc_hwkn_DavisSupplyInc.Member_8763F5114697D2E4D784459077EDA905" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0AF755E79A0AD48365B3459077ED552C" xlink:to="loc_hwkn_DavisSupplyInc.Member_8763F5114697D2E4D784459077EDA905" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_CC44AA9ECB52929E42BF459077EE1BC1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_55668634E95193EAC004459077EE1915" xlink:to="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_CC44AA9ECB52929E42BF459077EE1BC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationTextBlock" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_8DEEEA0DA0E63A793BEC459077EE2B1F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_55668634E95193EAC004459077EE1915" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_8DEEEA0DA0E63A793BEC459077EE2B1F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/BusinessCombinationsTextualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_55931B0781B3ABE823AD4B389CB2DF06" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_55931B0781B3ABE823AD4B389CB2DF06" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_FE64BDE9EC3525EA5B6D4B880489176B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_55931B0781B3ABE823AD4B389CB2DF06" xlink:to="loc_us-gaap_StatementScenarioAxis_FE64BDE9EC3525EA5B6D4B880489176B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D6F22F0D788847FE3A6A4B88049BF7C8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_FE64BDE9EC3525EA5B6D4B880489176B" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D6F22F0D788847FE3A6A4B88049BF7C8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D6F22F0D788847FE3A6A4B88049BF7C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_FE64BDE9EC3525EA5B6D4B880489176B" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D6F22F0D788847FE3A6A4B88049BF7C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProFormaMember" xlink:label="loc_us-gaap_ProFormaMember_8F2923B82B5943D906144B88050934D7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_D6F22F0D788847FE3A6A4B88049BF7C8" xlink:to="loc_us-gaap_ProFormaMember_8F2923B82B5943D906144B88050934D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_B09661E06055559F7DE54B389CB29C2F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_55931B0781B3ABE823AD4B389CB2DF06" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_B09661E06055559F7DE54B389CB29C2F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9DD0EDAF114ADFDA1F604B389CB2D4C0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_B09661E06055559F7DE54B389CB29C2F" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9DD0EDAF114ADFDA1F604B389CB2D4C0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9DD0EDAF114ADFDA1F604B389CB2D4C0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_B09661E06055559F7DE54B389CB29C2F" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9DD0EDAF114ADFDA1F604B389CB2D4C0" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_StauberPerformanceIngredientsMember" xlink:label="loc_hwkn_StauberPerformanceIngredientsMember_EC83627AED5887A175914B389CB2CD2C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9DD0EDAF114ADFDA1F604B389CB2D4C0" xlink:to="loc_hwkn_StauberPerformanceIngredientsMember_EC83627AED5887A175914B389CB2CD2C" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DavisSupplyInc.Member" xlink:label="loc_hwkn_DavisSupplyInc.Member_5968D8F0DA16989D9E174B389CB28EAD" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9DD0EDAF114ADFDA1F604B389CB2D4C0" xlink:to="loc_hwkn_DavisSupplyInc.Member_5968D8F0DA16989D9E174B389CB28EAD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_7D154DDA6AB2A47C9ED94B389CB21FA5" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_55931B0781B3ABE823AD4B389CB2DF06" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_7D154DDA6AB2A47C9ED94B389CB21FA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_96DD3F6F3E786A0FA0A44B389CB28052_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_7D154DDA6AB2A47C9ED94B389CB21FA5" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_96DD3F6F3E786A0FA0A44B389CB28052_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_96DD3F6F3E786A0FA0A44B389CB28052" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_7D154DDA6AB2A47C9ED94B389CB21FA5" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_96DD3F6F3E786A0FA0A44B389CB28052" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_68F57ADA2A0D497FE4EE4B389CB2255C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_55931B0781B3ABE823AD4B389CB2DF06" xlink:to="loc_us-gaap_StatementClassOfStockAxis_68F57ADA2A0D497FE4EE4B389CB2255C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_5E256234931B1E55FCB64B389CB22953_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_68F57ADA2A0D497FE4EE4B389CB2255C" xlink:to="loc_us-gaap_ClassOfStockDomain_5E256234931B1E55FCB64B389CB22953_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_5E256234931B1E55FCB64B389CB22953" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_68F57ADA2A0D497FE4EE4B389CB2255C" xlink:to="loc_us-gaap_ClassOfStockDomain_5E256234931B1E55FCB64B389CB22953" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_BusinessAcquisitionPreliminarypurchaseprice" xlink:label="loc_hwkn_BusinessAcquisitionPreliminarypurchaseprice_8344BE211901EDFB81EA4B389CB26A77" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_hwkn_BusinessAcquisitionPreliminarypurchaseprice_8344BE211901EDFB81EA4B389CB26A77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_1F2784A2C22C1E5879354B389CB25EA5" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_1F2784A2C22C1E5879354B389CB25EA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_F4830FB52797FBF9E08A4B389CB39B7D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_F4830FB52797FBF9E08A4B389CB39B7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_EF365A1FFE8B42F04B404B389CB3EE9F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_EF365A1FFE8B42F04B404B389CB3EE9F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_E76AF37F43CF606CD4DB4B389CB3C7CB" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_E76AF37F43CF606CD4DB4B389CB3C7CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_48249FD2FA47DB33A4384B389CB3FD37" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_48249FD2FA47DB33A4384B389CB3FD37" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionRevenueReportedByAcquiredEntityForLastAnnualPeriod" xlink:label="loc_us-gaap_BusinessAcquisitionRevenueReportedByAcquiredEntityForLastAnnualPeriod_E36415DAA2BD24467D9B4B389CB31AED" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_BusinessAcquisitionRevenueReportedByAcquiredEntityForLastAnnualPeriod_E36415DAA2BD24467D9B4B389CB31AED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_698439EC93F53CF29F804B389CB3D343" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_698439EC93F53CF29F804B389CB3D343" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_B1F88DBF155A060E8FDB4B7701B01ED2" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_81924E0C9452E37061BC4B389CB2A45E" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_B1F88DBF155A060E8FDB4B7701B01ED2" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CommitmentAndContingenciesTextualDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CommitmentAndContingenciesTextualStatement" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CommitmentsAndContingenciesFutureMinimumOperatingLeasePaymentsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CommitmentsAndContingenciesRentExpenseDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CommitmentsAndContingenciesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D36389EAD436BFDAA2A1B1A82870BB8C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_94756DB2A20CABB08F5BB1A82870BB91" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_D36389EAD436BFDAA2A1B1A82870BB8C" xlink:to="loc_us-gaap_StatementTable_94756DB2A20CABB08F5BB1A82870BB91" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_79CF787EDA19FF33A1BFB1A828700294" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_94756DB2A20CABB08F5BB1A82870BB91" xlink:to="loc_us-gaap_StatementScenarioAxis_79CF787EDA19FF33A1BFB1A828700294" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_5B91BF3F066005E5F204B1A828701D4B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_79CF787EDA19FF33A1BFB1A828700294" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_5B91BF3F066005E5F204B1A828701D4B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_5B91BF3F066005E5F204B1A828701D4B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_79CF787EDA19FF33A1BFB1A828700294" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_5B91BF3F066005E5F204B1A828701D4B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ConsolidatedBalanceSheets" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ConsolidatedStatementsOfShareholdersEquityAndComprehensiveIncomeLossStatement" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_4ADA1B018203089239364FE0ADA9FD7A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_2BD88747449A1F9759C84FE0ADA9B6A7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_4ADA1B018203089239364FE0ADA9FD7A" xlink:to="loc_us-gaap_StatementTable_2BD88747449A1F9759C84FE0ADA9B6A7" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_456B040F68A3B0076DDD4FE0ADA9F398" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_2BD88747449A1F9759C84FE0ADA9B6A7" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_456B040F68A3B0076DDD4FE0ADA9F398" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_456B040F68A3B0076DDD4FE0ADA9F398" xlink:to="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_456B040F68A3B0076DDD4FE0ADA9F398" xlink:to="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_DF7D1D508905CF88DB414FE0ADA9FA64" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58" xlink:to="loc_us-gaap_CommonStockMember_DF7D1D508905CF88DB414FE0ADA9FA64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_165284CA6E5E05AE93D04FE0ADA99238" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_165284CA6E5E05AE93D04FE0ADA99238" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_D3E627CA1DED41102B0F4FE0ADA9872E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58" xlink:to="loc_us-gaap_RetainedEarningsMember_D3E627CA1DED41102B0F4FE0ADA9872E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_4431A0C8821373FAF1724FE0ADA90825" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_B3D3C8D341ED1A4ED1DB4FE0ADA94E58" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_4431A0C8821373FAF1724FE0ADA90825" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4ADA1B018203089239364FE0ADA9FD7A" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_2EB5E52EC9509B4B854B4FE0ADA97246" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_SharesIssued_2EB5E52EC9509B4B854B4FE0ADA97246" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_A45337153352BA5DA6374FE0ADAAE585" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_StockholdersEquity_A45337153352BA5DA6374FE0ADAAE585" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_us-gaap_DividendsCommonStockCash_09704A42E661C66757024FE0ADAA1C83" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_DividendsCommonStockCash_09704A42E661C66757024FE0ADAA1C83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_C061D36A72BD1915E2EC4FE0ADAC72D6" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_C061D36A72BD1915E2EC4FE0ADAC72D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_6D089CB7F3FC75C8745A4FE0ADAC6CF1" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_6D089CB7F3FC75C8745A4FE0ADAC6CF1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_287CBD9CAB5C5139AC444FE0ADAC7B54" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_287CBD9CAB5C5139AC444FE0ADAC7B54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_6908AC2FA06D75A659624FE0ADAC10FA" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_6908AC2FA06D75A659624FE0ADAC10FA" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_SharesSurrenderedDuringPeriodForPayrollTaxesShares" xlink:label="loc_hwkn_SharesSurrenderedDuringPeriodForPayrollTaxesShares_34F7DAF7734E2CE2154D4FE0ADAC9E80" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_hwkn_SharesSurrenderedDuringPeriodForPayrollTaxesShares_34F7DAF7734E2CE2154D4FE0ADAC9E80" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_SharesSurrenderedDuringPeriodForPayrollTaxesValue" xlink:label="loc_hwkn_SharesSurrenderedDuringPeriodForPayrollTaxesValue_73CC8520A0BDBF1AC8D14FE0ADAC66BA" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_hwkn_SharesSurrenderedDuringPeriodForPayrollTaxesValue_73CC8520A0BDBF1AC8D14FE0ADAC66BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_BC512E525B9542B173A54FE0ADAC7621" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_BC512E525B9542B173A54FE0ADAC7621" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_7254D2C5B7152B6AA7D74FE0ADAC80BB" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_7254D2C5B7152B6AA7D74FE0ADAC80BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_9DA8F8FA37186593C4474FE0ADAC8DA4" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_9DA8F8FA37186593C4474FE0ADAC8DA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRepurchaseOfEquity" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfEquity_72F51F5AC01914D1381C4FE0ADAC1FBD" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfEquity_72F51F5AC01914D1381C4FE0ADAC1FBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_05E623F0B3237FE8D26D4FE0ADACEF57" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_05E623F0B3237FE8D26D4FE0ADACEF57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_9734873B5627555E30684FE0ADAD920C" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A2E4B5CE48B448197BBC4FE0ADA9D4AB" xlink:to="loc_us-gaap_NetIncomeLoss_9734873B5627555E30684FE0ADAD920C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/Debt" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_E652A81D254AB320D50F4F84C2BBF5DC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_DebtInstrumentTable_E652A81D254AB320D50F4F84C2BBF5DC" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_6BA2770D5D0F9F5EF98A4F84C2BCC0ED" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_E652A81D254AB320D50F4F84C2BBF5DC" xlink:to="loc_us-gaap_RangeAxis_6BA2770D5D0F9F5EF98A4F84C2BCC0ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_D69EB5734DC393BEC20F4F84C2BD7092_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_6BA2770D5D0F9F5EF98A4F84C2BCC0ED" xlink:to="loc_us-gaap_RangeMember_D69EB5734DC393BEC20F4F84C2BD7092_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_D69EB5734DC393BEC20F4F84C2BD7092" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_6BA2770D5D0F9F5EF98A4F84C2BCC0ED" xlink:to="loc_us-gaap_RangeMember_D69EB5734DC393BEC20F4F84C2BD7092" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_378AD7CF8974AD7057E94F84C2BD1B75" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_D69EB5734DC393BEC20F4F84C2BD7092" xlink:to="loc_us-gaap_MinimumMember_378AD7CF8974AD7057E94F84C2BD1B75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_0F8624CD64A2A201A8C04F84C2BD30E2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_E652A81D254AB320D50F4F84C2BBF5DC" xlink:to="loc_us-gaap_CreditFacilityAxis_0F8624CD64A2A201A8C04F84C2BD30E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_CC48AB0E7D8CB56239454F84C2BDC5C6_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_0F8624CD64A2A201A8C04F84C2BD30E2" xlink:to="loc_us-gaap_CreditFacilityDomain_CC48AB0E7D8CB56239454F84C2BDC5C6_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_CC48AB0E7D8CB56239454F84C2BDC5C6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_0F8624CD64A2A201A8C04F84C2BD30E2" xlink:to="loc_us-gaap_CreditFacilityDomain_CC48AB0E7D8CB56239454F84C2BDC5C6" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_TermLoanMember" xlink:label="loc_hwkn_TermLoanMember_B17385DFCA1BE2C8126A4F84C2BEB62A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_CC48AB0E7D8CB56239454F84C2BDC5C6" xlink:to="loc_hwkn_TermLoanMember_B17385DFCA1BE2C8126A4F84C2BEB62A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_411B186FF6E8CFA3FDDA4F84C2BE2D68" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_CC48AB0E7D8CB56239454F84C2BDC5C6" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_411B186FF6E8CFA3FDDA4F84C2BE2D68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_2B1B701C7082428AA4754F84C2BE74B1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_LongTermDebt_2B1B701C7082428AA4754F84C2BE74B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnamortizedDebtIssuanceExpense" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_E571EA3B43821DFE1B424F84C2BE540E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_E571EA3B43821DFE1B424F84C2BE540E" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_Totaldebtnetofdebtissuancecosts" xlink:label="loc_hwkn_Totaldebtnetofdebtissuancecosts_BD55B877545F836CF83F4F84C2BE5407" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_hwkn_Totaldebtnetofdebtissuancecosts_BD55B877545F836CF83F4F84C2BE5407" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_CBE906067D6E51BD1CE24F84C2BEE0EF" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_LongTermDebtCurrent_CBE906067D6E51BD1CE24F84C2BEE0EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_08D2FFC77794B6D401B94F84C2C34DDD" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_08D2FFC77794B6D401B94F84C2C34DDD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_D52DEA05108E35A6D6FB4F84C2C3A2A4" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_D52DEA05108E35A6D6FB4F84C2C3A2A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_45B9EE41D670F9A9A8324F84C2C33E3D" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_45B9EE41D670F9A9A8324F84C2C33E3D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_9522AE8B9EB6CA9B1BB34F84C2C304DD" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_489F9B0B5272BC4610874F84C2BE161C" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_9522AE8B9EB6CA9B1BB34F84C2C304DD" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DebtDetailsTextual" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_7E24A4D02F177D266CB64F84C54074FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_DebtInstrumentTable_7E24A4D02F177D266CB64F84C54074FC" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_966A79916FEBE7BCE6434F84C5401F81" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7E24A4D02F177D266CB64F84C54074FC" xlink:to="loc_us-gaap_RangeAxis_966A79916FEBE7BCE6434F84C5401F81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_368D525BA89F3D6148C74F84C54060F9_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_966A79916FEBE7BCE6434F84C5401F81" xlink:to="loc_us-gaap_RangeMember_368D525BA89F3D6148C74F84C54060F9_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_368D525BA89F3D6148C74F84C54060F9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_966A79916FEBE7BCE6434F84C5401F81" xlink:to="loc_us-gaap_RangeMember_368D525BA89F3D6148C74F84C54060F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_5F24593B6A2991B4F8294F84C540274C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_368D525BA89F3D6148C74F84C54060F9" xlink:to="loc_us-gaap_MinimumMember_5F24593B6A2991B4F8294F84C540274C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_A98BF0961AD0F956AF4C4F84C540D1E0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_368D525BA89F3D6148C74F84C54060F9" xlink:to="loc_us-gaap_MaximumMember_A98BF0961AD0F956AF4C4F84C540D1E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_D05EDB7C6C95495E8BF74F84C54074C7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7E24A4D02F177D266CB64F84C54074FC" xlink:to="loc_us-gaap_CreditFacilityAxis_D05EDB7C6C95495E8BF74F84C54074C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_A8A12403823A7816485E4F84C5402D73_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_D05EDB7C6C95495E8BF74F84C54074C7" xlink:to="loc_us-gaap_CreditFacilityDomain_A8A12403823A7816485E4F84C5402D73_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_A8A12403823A7816485E4F84C5402D73" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_D05EDB7C6C95495E8BF74F84C54074C7" xlink:to="loc_us-gaap_CreditFacilityDomain_A8A12403823A7816485E4F84C5402D73" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_TermLoanMember" xlink:label="loc_hwkn_TermLoanMember_EBC04B14FF1DCEEA56A94F84C54081FA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_A8A12403823A7816485E4F84C5402D73" xlink:to="loc_hwkn_TermLoanMember_EBC04B14FF1DCEEA56A94F84C54081FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_3E3FC8060253394986124F84C540E75D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_A8A12403823A7816485E4F84C5402D73" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_3E3FC8060253394986124F84C540E75D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_FD9E2756FA7E1C2F283F4F84C541AEE2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_FD9E2756FA7E1C2F283F4F84C541AEE2" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_RevolvingLoanFacilityLetterofCredit" xlink:label="loc_hwkn_RevolvingLoanFacilityLetterofCredit_1BFA032F9D6E3C53D0C04F84C541A9C3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_RevolvingLoanFacilityLetterofCredit_1BFA032F9D6E3C53D0C04F84C541A9C3" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_RevolvingLoanFacilitySwinglineSubfacility" xlink:label="loc_hwkn_RevolvingLoanFacilitySwinglineSubfacility_C6539BA2B9BA52C982524F84C5414648" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_RevolvingLoanFacilitySwinglineSubfacility_C6539BA2B9BA52C982524F84C5414648" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_InterestratepercentaboveFederalFundsEffectiveRate" xlink:label="loc_hwkn_InterestratepercentaboveFederalFundsEffectiveRate_EA9B0D07A953B1B7326A4F84C546A127" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_InterestratepercentaboveFederalFundsEffectiveRate_EA9B0D07A953B1B7326A4F84C546A127" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_InterestratepercentaboveonemonthLIBORforU.S.dollars" xlink:label="loc_hwkn_InterestratepercentaboveonemonthLIBORforU.S.dollars_74153F26495337401E6F4F84C5466489" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_InterestratepercentaboveonemonthLIBORforU.S.dollars_74153F26495337401E6F4F84C5466489" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_LIBORMarginMinimum" xlink:label="loc_hwkn_LIBORMarginMinimum_B54B0A18D031FE45C5754F84C546680D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_LIBORMarginMinimum_B54B0A18D031FE45C5754F84C546680D" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_LIBORMarginMedian" xlink:label="loc_hwkn_LIBORMarginMedian_F5296EC7854F5568D3F84F84C5460E48" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_LIBORMarginMedian_F5296EC7854F5568D3F84F84C5460E48" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_LIBORMarginMaximum" xlink:label="loc_hwkn_LIBORMarginMaximum_E0EE0C770D5F3633E9714F84C5469163" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_LIBORMarginMaximum_E0EE0C770D5F3633E9714F84C5469163" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_BaseRateMarginMinimum" xlink:label="loc_hwkn_BaseRateMarginMinimum_97EEB72679544CB9CD0E4F84C546CA09" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_BaseRateMarginMinimum_97EEB72679544CB9CD0E4F84C546CA09" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_BaseRateMarginMedian" xlink:label="loc_hwkn_BaseRateMarginMedian_BE5F3C25ADE76BC2C17D4F84C546ED6F" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_BaseRateMarginMedian_BE5F3C25ADE76BC2C17D4F84C546ED6F" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_BaseRateMarginMaximum" xlink:label="loc_hwkn_BaseRateMarginMaximum_297992F22E40C1FE6B674F84C5460828" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_BaseRateMarginMaximum_297992F22E40C1FE6B674F84C5460828" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_03A280C962064EB831BB4F84C546A156" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_03A280C962064EB831BB4F84C546A156" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_7A6829AF35393337879A4F84C5463C01" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_7A6829AF35393337879A4F84C5463C01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount" xlink:label="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_12486CD719977954193A4F84C5471546" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_12486CD719977954193A4F84C5471546" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_32FF2B76F4584C06E7774F84C547A13C" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_32FF2B76F4584C06E7774F84C547A13C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_CE3441182C8D36C922904F84C5476C20" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_CE3441182C8D36C922904F84C5476C20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_A9B11EE8B4AEBA14D9754F84C547C408" xlink:type="locator" />
    <link:definitionArc order="17" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_A9B11EE8B4AEBA14D9754F84C547C408" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnamortizedDebtIssuanceExpense" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_767BAB28F90745E507D34F84C5476A4D" xlink:type="locator" />
    <link:definitionArc order="18" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_767BAB28F90745E507D34F84C5476A4D" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_FixedChargeCoverageRatio" xlink:label="loc_hwkn_FixedChargeCoverageRatio_653166D7E8E2EDECB54D4F84C54724AC" xlink:type="locator" />
    <link:definitionArc order="19" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_FixedChargeCoverageRatio_653166D7E8E2EDECB54D4F84C54724AC" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_Cashflowleverageratio" xlink:label="loc_hwkn_Cashflowleverageratio_DB9934AEFE95E591EA264F84C5474D5B" xlink:type="locator" />
    <link:definitionArc order="20" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_FB79502AA499F3C141624F84C540A139" xlink:to="loc_hwkn_Cashflowleverageratio_DB9934AEFE95E591EA264F84C5474D5B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DebtTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DerivativeInstruments" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DerivativeInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_94207BEFEE51CD5F26D56EB93B4D6776" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_94207BEFEE51CD5F26D56EB93B4D6776" xlink:to="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_7DEC856057324DFB44436EB93B4B110B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_7DEC856057324DFB44436EB93B4B110B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_C24A84202C6C9478DF036EB93B4BA1B7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_7DEC856057324DFB44436EB93B4B110B" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_C24A84202C6C9478DF036EB93B4BA1B7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_C24A84202C6C9478DF036EB93B4BA1B7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_7DEC856057324DFB44436EB93B4B110B" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_C24A84202C6C9478DF036EB93B4BA1B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_11A0207D4CAEF93467136EB93B4BD805" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_C24A84202C6C9478DF036EB93B4BA1B7" xlink:to="loc_us-gaap_InterestRateSwapMember_11A0207D4CAEF93467136EB93B4BD805" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_F7F712960DD5E8E8A7306EB93B4B3BF4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:to="loc_us-gaap_DebtInstrumentAxis_F7F712960DD5E8E8A7306EB93B4B3BF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_F7F712960DD5E8E8A7306EB93B4B3BF4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_F7F712960DD5E8E8A7306EB93B4B3BF4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_B51EC2307222AC920B036EB93B4B64D6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_B51EC2307222AC920B036EB93B4B64D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_CE3E9DC6B733F612C7E46EB93B4CD7CB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_CE3E9DC6B733F612C7E46EB93B4CD7CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodThreeMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_2FD8A7D790C09ADA162C6EB93B4C1806" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0B450A908C69A13665DA6EB93B4BD251" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_2FD8A7D790C09ADA162C6EB93B4C1806" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnergyAxis" xlink:label="loc_us-gaap_EnergyAxis_E94A3017ED82EE20C8296EB93B4C0023" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:to="loc_us-gaap_EnergyAxis_E94A3017ED82EE20C8296EB93B4C0023" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnergyDomain" xlink:label="loc_us-gaap_EnergyDomain_0759204D0AFD1712E3426EB93B4C74E6_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EnergyAxis_E94A3017ED82EE20C8296EB93B4C0023" xlink:to="loc_us-gaap_EnergyDomain_0759204D0AFD1712E3426EB93B4C74E6_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnergyDomain" xlink:label="loc_us-gaap_EnergyDomain_0759204D0AFD1712E3426EB93B4C74E6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EnergyAxis_E94A3017ED82EE20C8296EB93B4C0023" xlink:to="loc_us-gaap_EnergyDomain_0759204D0AFD1712E3426EB93B4C74E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaap_VariableRateAxis_57BE5D2D9D321367FA416EB93B4CF06A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:to="loc_us-gaap_VariableRateAxis_57BE5D2D9D321367FA416EB93B4CF06A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_BD42C8EE3F4326CE66406EB93B4CAD61_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_57BE5D2D9D321367FA416EB93B4CF06A" xlink:to="loc_us-gaap_VariableRateDomain_BD42C8EE3F4326CE66406EB93B4CAD61_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_BD42C8EE3F4326CE66406EB93B4CAD61" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_57BE5D2D9D321367FA416EB93B4CF06A" xlink:to="loc_us-gaap_VariableRateDomain_BD42C8EE3F4326CE66406EB93B4CAD61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PositionAxis" xlink:label="loc_us-gaap_PositionAxis_5847AB8C419C693925B66EB93B4C9285" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_2EB185D0ABCD7CCFA7296EB93B4839B8" xlink:to="loc_us-gaap_PositionAxis_5847AB8C419C693925B66EB93B4C9285" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PositionDomain" xlink:label="loc_us-gaap_PositionDomain_E59F44DC5EBC06A81C006EB93B4C0BA7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PositionAxis_5847AB8C419C693925B66EB93B4C9285" xlink:to="loc_us-gaap_PositionDomain_E59F44DC5EBC06A81C006EB93B4C0BA7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PositionDomain" xlink:label="loc_us-gaap_PositionDomain_E59F44DC5EBC06A81C006EB93B4C0BA7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PositionAxis_5847AB8C419C693925B66EB93B4C9285" xlink:to="loc_us-gaap_PositionDomain_E59F44DC5EBC06A81C006EB93B4C0BA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNotionalAmount" xlink:label="loc_invest_DerivativeNotionalAmount_E98D00B0DDBA44A451526EB93B4D7BD0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_94207BEFEE51CD5F26D56EB93B4D6776" xlink:to="loc_invest_DerivativeNotionalAmount_E98D00B0DDBA44A451526EB93B4D7BD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsLossRecognizedInOtherComprehensiveIncomeEffectivePortion" xlink:label="loc_us-gaap_DerivativeInstrumentsLossRecognizedInOtherComprehensiveIncomeEffectivePortion_618605D651F0E819B48D6EB93B4DE8C3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_94207BEFEE51CD5F26D56EB93B4D6776" xlink:to="loc_us-gaap_DerivativeInstrumentsLossRecognizedInOtherComprehensiveIncomeEffectivePortion_618605D651F0E819B48D6EB93B4DE8C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashFlowHedgeDerivativeInstrumentAssetsAtFairValue" xlink:label="loc_us-gaap_CashFlowHedgeDerivativeInstrumentAssetsAtFairValue_C07586833AA7092DF1946EB93B4DB62F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_94207BEFEE51CD5F26D56EB93B4D6776" xlink:to="loc_us-gaap_CashFlowHedgeDerivativeInstrumentAssetsAtFairValue_C07586833AA7092DF1946EB93B4DB62F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DerivativeInstrumentsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/FairValueMeasurements" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D9E7FE78D61B4603C2804FE1613FEB09" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F346E219CC94A36E6F5B4FE1613E7C7D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D9E7FE78D61B4603C2804FE1613FEB09" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F346E219CC94A36E6F5B4FE1613E7C7D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_408360529532913B38384FE1613F426B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F346E219CC94A36E6F5B4FE1613E7C7D" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_408360529532913B38384FE1613F426B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_408360529532913B38384FE1613F426B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_408360529532913B38384FE1613F426B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_1202546E7B1C27DD54C34FE1613F1E2C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_1202546E7B1C27DD54C34FE1613F1E2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_6F4BC02C5616987C2AC94FE1613FC0A1" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_6F4BC02C5616987C2AC94FE1613FC0A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_18E4047C06A2FC93C34F4FE1613F01F6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0600EB2C28BC96C882144FE1613FD043" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_18E4047C06A2FC93C34F4FE1613F01F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_687285EDC1F72375D0274FE1613ECD1F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F346E219CC94A36E6F5B4FE1613E7C7D" xlink:to="loc_us-gaap_FinancialInstrumentAxis_687285EDC1F72375D0274FE1613ECD1F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D77B93CC9A0A2E064C994FE1613FF7C0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_687285EDC1F72375D0274FE1613ECD1F" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D77B93CC9A0A2E064C994FE1613FF7C0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D77B93CC9A0A2E064C994FE1613FF7C0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_687285EDC1F72375D0274FE1613ECD1F" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D77B93CC9A0A2E064C994FE1613FF7C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_3CEECA47492F599FD5E44FE1613F2479" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D77B93CC9A0A2E064C994FE1613FF7C0" xlink:to="loc_us-gaap_InterestRateSwapMember_3CEECA47492F599FD5E44FE1613F2479" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentTypeMember" xlink:label="loc_us-gaap_InvestmentTypeMember_2ED12E729C49496DEF7D4FE1613FC83D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D77B93CC9A0A2E064C994FE1613FF7C0" xlink:to="loc_us-gaap_InvestmentTypeMember_2ED12E729C49496DEF7D4FE1613FC83D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosureRecurring" xlink:label="loc_us-gaap_AssetsFairValueDisclosureRecurring_B66704DA16FE90F556574FE1613F3735" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D9E7FE78D61B4603C2804FE1613FEB09" xlink:to="loc_us-gaap_AssetsFairValueDisclosureRecurring_B66704DA16FE90F556574FE1613F3735" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/FairValueMeasurementsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssets" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsFutureAmortizationDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsGoodwillRollforwardDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_9E8F43779CC61F210EB94B389C81C41A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_E119CC0512C1BF50AE544B389C819D03" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_9E8F43779CC61F210EB94B389C81C41A" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_E119CC0512C1BF50AE544B389C819D03" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_80ACFED4911CF7ABC7E44B389C81CFEB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_E119CC0512C1BF50AE544B389C819D03" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_80ACFED4911CF7ABC7E44B389C81CFEB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_80ACFED4911CF7ABC7E44B389C81CFEB" xlink:to="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_80ACFED4911CF7ABC7E44B389C81CFEB" xlink:to="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_IndustrialMember" xlink:label="loc_hwkn_IndustrialMember_E7D4CC9E178E6492390F4B389C81FEE1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B" xlink:to="loc_hwkn_IndustrialMember_E7D4CC9E178E6492390F4B389C81FEE1" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_WaterTreatmentMember" xlink:label="loc_hwkn_WaterTreatmentMember_59CC5DD5BE8D65913E364B389C819DA3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B" xlink:to="loc_hwkn_WaterTreatmentMember_59CC5DD5BE8D65913E364B389C819DA3" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_HealthandNutritionMember" xlink:label="loc_hwkn_HealthandNutritionMember_98C03B54BC3DABEB21634B389C81220B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B" xlink:to="loc_hwkn_HealthandNutritionMember_98C03B54BC3DABEB21634B389C81220B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaterialReconcilingItemsMember" xlink:label="loc_us-gaap_MaterialReconcilingItemsMember_F9CAE02F503ACE843D204B389C819849" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_236D5B8B2A6791E82C914B389C81BE6B" xlink:to="loc_us-gaap_MaterialReconcilingItemsMember_F9CAE02F503ACE843D204B389C819849" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_641033CBDD685C08B6794B389C812D71" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_9E8F43779CC61F210EB94B389C81C41A" xlink:to="loc_us-gaap_NumberOfReportableSegments_641033CBDD685C08B6794B389C812D71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_913C5FA09E591AE98BF34B389C810ED4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_9E8F43779CC61F210EB94B389C81C41A" xlink:to="loc_us-gaap_Goodwill_913C5FA09E591AE98BF34B389C810ED4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillPeriodIncreaseDecrease" xlink:label="loc_us-gaap_GoodwillPeriodIncreaseDecrease_85CB7D824D8E93784F2C4B389C814B24" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_9E8F43779CC61F210EB94B389C81C41A" xlink:to="loc_us-gaap_GoodwillPeriodIncreaseDecrease_85CB7D824D8E93784F2C4B389C814B24" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1F1130DA773A39DAC17E6EFF7674D879" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_ABDF58CF916CE785D1056EFF7673A623" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1F1130DA773A39DAC17E6EFF7674D879" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_ABDF58CF916CE785D1056EFF7673A623" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_09BE94042EC7AE2DD06A6EFF76739A5A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_ABDF58CF916CE785D1056EFF7673A623" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_09BE94042EC7AE2DD06A6EFF76739A5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_09BE94042EC7AE2DD06A6EFF76739A5A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_09BE94042EC7AE2DD06A6EFF76739A5A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_5D11E6BD712B74C12A716EFF7673CF4B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD" xlink:to="loc_us-gaap_CustomerRelationshipsMember_5D11E6BD712B74C12A716EFF7673CF4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_us-gaap_TrademarksMember_D2844DFC91199DDB77A56EFF7673D408" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD" xlink:to="loc_us-gaap_TrademarksMember_D2844DFC91199DDB77A56EFF7673D408" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_OtherFiniteLifeIntangibleAssetsMember" xlink:label="loc_hwkn_OtherFiniteLifeIntangibleAssetsMember_106E00BA505E157976496EFF767494B3" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_C68C8E758DE72640CA516EFF767305FD" xlink:to="loc_hwkn_OtherFiniteLifeIntangibleAssetsMember_106E00BA505E157976496EFF767494B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_5DA1758C2BA20EC190ED6F102D3886CF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1F1130DA773A39DAC17E6EFF7674D879" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_5DA1758C2BA20EC190ED6F102D3886CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_4F1F91F8CB0ADA3C54686EFF767422A0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1F1130DA773A39DAC17E6EFF7674D879" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_4F1F91F8CB0ADA3C54686EFF767422A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_4F1F91F8CB0ADA3C54686EFF767422A0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_42C97CC7824FE3E3C8A56EFF76741E1C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_42C97CC7824FE3E3C8A56EFF76741E1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2F74E6DDFA0756F299986EFF76745F7E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_2F74E6DDFA0756F299986EFF76745F7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_026248BDFC1434467E7C6EFF7674EAD0" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_026248BDFC1434467E7C6EFF7674EAD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_493EDFE815869C1585286EFF76749216" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_493EDFE815869C1585286EFF76749216" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_IntangibleAssetsGrossCarryingAmount" xlink:label="loc_hwkn_IntangibleAssetsGrossCarryingAmount_1992B7D35EEEB80909A06EFF7674C6B6" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_hwkn_IntangibleAssetsGrossCarryingAmount_1992B7D35EEEB80909A06EFF7674C6B6" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_IntangibleAssetsAccumulatedAmortization" xlink:label="loc_hwkn_IntangibleAssetsAccumulatedAmortization_4BCC9DB3C667CDB7F1B86EFF7674B3B2" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_hwkn_IntangibleAssetsAccumulatedAmortization_4BCC9DB3C667CDB7F1B86EFF7674B3B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_821D099AD1FCD0582C5A6EFF76740758" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_F25E0BFC8D4A58AD33EA6EFF7674762A" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_821D099AD1FCD0582C5A6EFF76740758" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/IncomeTaxes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/IncomeTaxesIncomeTaxesDeferredTaxAssetsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/IncomeTaxesProvisionOfIncomeTaxDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationLineItems" xlink:label="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationTable" xlink:label="loc_us-gaap_IncomeTaxExaminationTable_18D488E46F170328EA046C55229D07BF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_IncomeTaxExaminationTable_18D488E46F170328EA046C55229D07BF" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_5801C0E94007257A638E6C55229D98EE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxExaminationTable_18D488E46F170328EA046C55229D07BF" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_5801C0E94007257A638E6C55229D98EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_AF55C64DC48E6E9335816C55229D73C4_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_5801C0E94007257A638E6C55229D98EE" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_AF55C64DC48E6E9335816C55229D73C4_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_AF55C64DC48E6E9335816C55229D73C4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_5801C0E94007257A638E6C55229D98EE" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_AF55C64DC48E6E9335816C55229D73C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_F9D0F621ACEB5BA134096C55229D27FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_F9D0F621ACEB5BA134096C55229D27FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_27F5DE281E35E4BA05ED6C55229D3080" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_27F5DE281E35E4BA05ED6C55229D3080" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_BE97BFFEEDEE0CF1E9AF6C55229D95BE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_BE97BFFEEDEE0CF1E9AF6C55229D95BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_518B2CB43CC70B31DE416C55229E6B11" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_518B2CB43CC70B31DE416C55229E6B11" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_5DE2D4BAA61E75D6EC7E6C55229EACEE" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_5DE2D4BAA61E75D6EC7E6C55229EACEE" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DeferredIncomeTaxExpenseBenefitExcludingProvisionalGain" xlink:label="loc_hwkn_DeferredIncomeTaxExpenseBenefitExcludingProvisionalGain_7D785E9521D27EE383296C55229E463F" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_hwkn_DeferredIncomeTaxExpenseBenefitExcludingProvisionalGain_7D785E9521D27EE383296C55229E463F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_1B28A0B3D1BEDC8913646C55229EA589" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_A669853AD31EA859227F6C55229DA0BC" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_1B28A0B3D1BEDC8913646C55229EA589" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/IncomeTaxesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/IncomeTaxesTextualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxContingencyLineItems" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxContingencyTable" xlink:label="loc_us-gaap_IncomeTaxContingencyTable_496276571E936D5D6A4B4ADA28BD14E8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:to="loc_us-gaap_IncomeTaxContingencyTable_496276571E936D5D6A4B4ADA28BD14E8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_7F615EA5721D1E6920514AE2B85951C1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_496276571E936D5D6A4B4ADA28BD14E8" xlink:to="loc_us-gaap_StatementScenarioAxis_7F615EA5721D1E6920514AE2B85951C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_15C46AD5A5773A92819B4AE2B8680D48_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_7F615EA5721D1E6920514AE2B85951C1" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_15C46AD5A5773A92819B4AE2B8680D48_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_15C46AD5A5773A92819B4AE2B8680D48" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_7F615EA5721D1E6920514AE2B85951C1" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_15C46AD5A5773A92819B4AE2B8680D48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_06EDCFDAAEE314C42FEC4AE2B89142F8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_15C46AD5A5773A92819B4AE2B8680D48" xlink:to="loc_us-gaap_ScenarioForecastMember_06EDCFDAAEE314C42FEC4AE2B89142F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_1C88698CA4F2B3DAC2994AE2B8418FC9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_1C88698CA4F2B3DAC2994AE2B8418FC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability_E094B2640EAC40CFA5A44AE24E27D3BF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability_E094B2640EAC40CFA5A44AE24E27D3BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_1A42D4BD3DA039B0F63D4ADA28BDAE5C" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_1A42D4BD3DA039B0F63D4ADA28BDAE5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate" xlink:label="loc_us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate_C5527A9FA10272CF03104ADA28BD6593" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:to="loc_us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate_C5527A9FA10272CF03104ADA28BD6593" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions" xlink:label="loc_us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions_86E0294A41528C0F8C904ADA28BD2B82" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_BBA805F7C96D07012DDD4ADA28BD38DF" xlink:to="loc_us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions_86E0294A41528C0F8C904ADA28BD2B82" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/Inventories" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/InventoriesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/InventoriesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/InventoriesTextualDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesEpsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesPpeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E389325D7F905206A337AC8FA251B5DB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5C2E7382B54E9905B26CAC8FA2500D1B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E389325D7F905206A337AC8FA251B5DB" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5C2E7382B54E9905B26CAC8FA2500D1B" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_07B8C071A1F8D1000B86AC8FA250FF99" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5C2E7382B54E9905B26CAC8FA2500D1B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_07B8C071A1F8D1000B86AC8FA250FF99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_07B8C071A1F8D1000B86AC8FA250FF99" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_07B8C071A1F8D1000B86AC8FA250FF99" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_D9C8432AC57E2EC39A7BAC8FA25002CB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_D9C8432AC57E2EC39A7BAC8FA25002CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_C3ABA871C477B1ACE248AC8FA250CC67" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_C3ABA871C477B1ACE248AC8FA250CC67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransportationEquipmentMember" xlink:label="loc_us-gaap_TransportationEquipmentMember_DA3E220883EDE2F55F3EAC8FA2510E1E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290" xlink:to="loc_us-gaap_TransportationEquipmentMember_DA3E220883EDE2F55F3EAC8FA2510E1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OfficeEquipmentMember" xlink:label="loc_us-gaap_OfficeEquipmentMember_7159734C3FBB174FB3FEAC8FA251704A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0DB0BFCD2772BE6B0031AC8FA2504290" xlink:to="loc_us-gaap_OfficeEquipmentMember_7159734C3FBB174FB3FEAC8FA251704A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_521DF8CC7569E9D8628AAC8FA25132AE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_5C2E7382B54E9905B26CAC8FA2500D1B" xlink:to="loc_us-gaap_RangeAxis_521DF8CC7569E9D8628AAC8FA25132AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_521DF8CC7569E9D8628AAC8FA25132AE" xlink:to="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_521DF8CC7569E9D8628AAC8FA25132AE" xlink:to="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_6EDEA1B1110BA1A42034AC8FA2515D65" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0" xlink:to="loc_us-gaap_MinimumMember_6EDEA1B1110BA1A42034AC8FA2515D65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_BECB8A83319894DFEC81AC8FA2515293" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0" xlink:to="loc_us-gaap_MaximumMember_BECB8A83319894DFEC81AC8FA2515293" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_3456E001CFE3FD651BE9AC8FA2519284" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_3ADFEFDF64CCAA62328EAC8FA251E8D0" xlink:to="loc_us-gaap_WeightedAverageMember_3456E001CFE3FD651BE9AC8FA2519284" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_73D79C90682A0A2BA411AC8FA2512E00" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E389325D7F905206A337AC8FA251B5DB" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_73D79C90682A0A2BA411AC8FA2512E00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_9AA952B485AD7AF4EE1AAC8FA251DA43" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E389325D7F905206A337AC8FA251B5DB" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_9AA952B485AD7AF4EE1AAC8FA251DA43" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/NatureOfBusinessAndSignificantAccountingPoliciesTextualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_5C97818871776032A4364FE161748DD8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_us-gaap_StatementTable_5C97818871776032A4364FE161748DD8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_97D50E3DFB3F7FE297EB4FE16174FDD9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_5C97818871776032A4364FE161748DD8" xlink:to="loc_us-gaap_RangeAxis_97D50E3DFB3F7FE297EB4FE16174FDD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_7EC99E905D94C52905D04FE16174D176_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_97D50E3DFB3F7FE297EB4FE16174FDD9" xlink:to="loc_us-gaap_RangeMember_7EC99E905D94C52905D04FE16174D176_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_7EC99E905D94C52905D04FE16174D176" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_97D50E3DFB3F7FE297EB4FE16174FDD9" xlink:to="loc_us-gaap_RangeMember_7EC99E905D94C52905D04FE16174D176" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_E9B7BC614326640466804FE161747AB9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_7EC99E905D94C52905D04FE16174D176" xlink:to="loc_us-gaap_MaximumMember_E9B7BC614326640466804FE161747AB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_D8273871017F95934B244FE161741CD3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_7EC99E905D94C52905D04FE16174D176" xlink:to="loc_us-gaap_MinimumMember_D8273871017F95934B244FE161741CD3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_FC7B0A6492FCABAF604F4FE16175C6DF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_us-gaap_NumberOfReportableSegments_FC7B0A6492FCABAF604F4FE16175C6DF" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_NumberofWeeksinFiscalYear" xlink:label="loc_hwkn_NumberofWeeksinFiscalYear_9C38F6FD5993D6AF301F4FE161752E71" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_hwkn_NumberofWeeksinFiscalYear_9C38F6FD5993D6AF301F4FE161752E71" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_NumberOfWeeksInNextFiscalYear" xlink:label="loc_hwkn_NumberOfWeeksInNextFiscalYear_96AE3AC60EF5E26841644FE16175BFED" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_hwkn_NumberOfWeeksInNextFiscalYear_96AE3AC60EF5E26841644FE16175BFED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PercentageOfLIFOInventory" xlink:label="loc_us-gaap_PercentageOfLIFOInventory_851CC9456FCC53D136DC4FE16175EB5E" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_us-gaap_PercentageOfLIFOInventory_851CC9456FCC53D136DC4FE16175EB5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PercentageOfFIFOInventory" xlink:label="loc_us-gaap_PercentageOfFIFOInventory_9D11B60839CAB514AB054FE161750F54" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_us-gaap_PercentageOfFIFOInventory_9D11B60839CAB514AB054FE161750F54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_319086E16811D83118FF4FE161751B89" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_BA264D065BF2CD4639774FE16175FE24" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_319086E16811D83118FF4FE161751B89" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlans" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanTable" xlink:label="loc_us-gaap_DefinedContributionPlanTable_1FACB44B28A92C7602506C55218DCC7C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_us-gaap_DefinedContributionPlanTable_1FACB44B28A92C7602506C55218DCC7C" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_BAE8CBC7E9584B5DDA6E6C55218DD789" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_1FACB44B28A92C7602506C55218DCC7C" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_BAE8CBC7E9584B5DDA6E6C55218DD789" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_2A51C77738C92A35B9C66C55218DBDA7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_BAE8CBC7E9584B5DDA6E6C55218DD789" xlink:to="loc_us-gaap_EquityComponentDomain_2A51C77738C92A35B9C66C55218DBDA7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_2A51C77738C92A35B9C66C55218DBDA7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_BAE8CBC7E9584B5DDA6E6C55218DD789" xlink:to="loc_us-gaap_EquityComponentDomain_2A51C77738C92A35B9C66C55218DBDA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_39F94FE0F295F2A023376C55218DE1CC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_2A51C77738C92A35B9C66C55218DBDA7" xlink:to="loc_us-gaap_CommonStockMember_39F94FE0F295F2A023376C55218DE1CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollectiveBargainingArrangementAxis" xlink:label="loc_us-gaap_CollectiveBargainingArrangementAxis_1B59EBFCB659FAF9469D6C55218D8FCC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_1FACB44B28A92C7602506C55218DCC7C" xlink:to="loc_us-gaap_CollectiveBargainingArrangementAxis_1B59EBFCB659FAF9469D6C55218D8FCC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollectiveBargainingArrangementDomain" xlink:label="loc_us-gaap_CollectiveBargainingArrangementDomain_71E62933503A05D9FC416C55218DB5AE_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CollectiveBargainingArrangementAxis_1B59EBFCB659FAF9469D6C55218D8FCC" xlink:to="loc_us-gaap_CollectiveBargainingArrangementDomain_71E62933503A05D9FC416C55218DB5AE_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollectiveBargainingArrangementDomain" xlink:label="loc_us-gaap_CollectiveBargainingArrangementDomain_71E62933503A05D9FC416C55218DB5AE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CollectiveBargainingArrangementAxis_1B59EBFCB659FAF9469D6C55218D8FCC" xlink:to="loc_us-gaap_CollectiveBargainingArrangementDomain_71E62933503A05D9FC416C55218DB5AE" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_BargainingUnitEmployeePlansMember" xlink:label="loc_hwkn_BargainingUnitEmployeePlansMember_28DABD5423D0DD1D6D0C6C55218D5957" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollectiveBargainingArrangementDomain_71E62933503A05D9FC416C55218DB5AE" xlink:to="loc_hwkn_BargainingUnitEmployeePlansMember_28DABD5423D0DD1D6D0C6C55218D5957" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_169CA7FCB1399547BD5A6C55218E01CF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_169CA7FCB1399547BD5A6C55218E01CF" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DefinedContributionPlanEmployerMatchingContributionAmount" xlink:label="loc_hwkn_DefinedContributionPlanEmployerMatchingContributionAmount_4EEDA379A0130BAABD6C6C55218EBA61" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_hwkn_DefinedContributionPlanEmployerMatchingContributionAmount_4EEDA379A0130BAABD6C6C55218EBA61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense" xlink:label="loc_us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense_E15A74CD60A3412915BC6C55218E30D1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense_E15A74CD60A3412915BC6C55218E30D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualContributionsByEmployer" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualContributionsByEmployer_2A5095D2008BA1477C726C55218E050F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualContributionsByEmployer_2A5095D2008BA1477C726C55218E050F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_55C7E7AF0EFDD4762DB06C55218ED5FA" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_55C7E7AF0EFDD4762DB06C55218ED5FA" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_EmployeeStockPurchasePlansESPPCompensationExpense" xlink:label="loc_hwkn_EmployeeStockPurchasePlansESPPCompensationExpense_056E7DB7DFE54318710E6C55218E134D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_hwkn_EmployeeStockPurchasePlansESPPCompensationExpense_056E7DB7DFE54318710E6C55218E134D" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_ProfitSharingEmployeeStockOwnershipPlanEmployeeStockPurchasePlanAndDefinedContributionPensionPlanContributionExpense" xlink:label="loc_hwkn_ProfitSharingEmployeeStockOwnershipPlanEmployeeStockPurchasePlanAndDefinedContributionPensionPlanContributionExpense_4031EBDFE344E0A194FD6C55218EEACB" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_89992304C3A67DF810CF6C55218E39B2" xlink:to="loc_hwkn_ProfitSharingEmployeeStockOwnershipPlanEmployeeStockPurchasePlanAndDefinedContributionPensionPlanContributionExpense_4031EBDFE344E0A194FD6C55218EEACB" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansMultiemployerPensionPlansDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ProfitSharingEmployeeStockOwnershipEmployeeStockPurchaseAndPensionPlansTextualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanTable" xlink:label="loc_us-gaap_DefinedContributionPlanTable_C8CE3286B33BBBA9098F6C5522A60C6D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_us-gaap_DefinedContributionPlanTable_C8CE3286B33BBBA9098F6C5522A60C6D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_E0224B894B066937C0786C5522A6E180" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_C8CE3286B33BBBA9098F6C5522A60C6D" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_E0224B894B066937C0786C5522A6E180" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_633D48430BBEF07DC56E6C5522A6364C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_E0224B894B066937C0786C5522A6E180" xlink:to="loc_us-gaap_EquityComponentDomain_633D48430BBEF07DC56E6C5522A6364C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_633D48430BBEF07DC56E6C5522A6364C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_E0224B894B066937C0786C5522A6E180" xlink:to="loc_us-gaap_EquityComponentDomain_633D48430BBEF07DC56E6C5522A6364C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_20CB7CD13343896EC5786C5522A66880" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_633D48430BBEF07DC56E6C5522A6364C" xlink:to="loc_us-gaap_CommonStockMember_20CB7CD13343896EC5786C5522A66880" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_528E359312728733E1FE6C5522A7A175" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_C8CE3286B33BBBA9098F6C5522A60C6D" xlink:to="loc_us-gaap_RangeAxis_528E359312728733E1FE6C5522A7A175" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_DDED502D90961597A4E46C5522A7994D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_528E359312728733E1FE6C5522A7A175" xlink:to="loc_us-gaap_RangeMember_DDED502D90961597A4E46C5522A7994D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_DDED502D90961597A4E46C5522A7994D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_528E359312728733E1FE6C5522A7A175" xlink:to="loc_us-gaap_RangeMember_DDED502D90961597A4E46C5522A7994D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_C0BC53B3E35DE1B4E3876C5522A7ECD9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_DDED502D90961597A4E46C5522A7994D" xlink:to="loc_us-gaap_MaximumMember_C0BC53B3E35DE1B4E3876C5522A7ECD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollectiveBargainingArrangementAxis" xlink:label="loc_us-gaap_CollectiveBargainingArrangementAxis_8ED0817341B111DA1CC46C5522A7A7E6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_C8CE3286B33BBBA9098F6C5522A60C6D" xlink:to="loc_us-gaap_CollectiveBargainingArrangementAxis_8ED0817341B111DA1CC46C5522A7A7E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollectiveBargainingArrangementDomain" xlink:label="loc_us-gaap_CollectiveBargainingArrangementDomain_28E406FA63464C5D3E246C5522A76FD7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CollectiveBargainingArrangementAxis_8ED0817341B111DA1CC46C5522A7A7E6" xlink:to="loc_us-gaap_CollectiveBargainingArrangementDomain_28E406FA63464C5D3E246C5522A76FD7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollectiveBargainingArrangementDomain" xlink:label="loc_us-gaap_CollectiveBargainingArrangementDomain_28E406FA63464C5D3E246C5522A76FD7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CollectiveBargainingArrangementAxis_8ED0817341B111DA1CC46C5522A7A7E6" xlink:to="loc_us-gaap_CollectiveBargainingArrangementDomain_28E406FA63464C5D3E246C5522A76FD7" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_BargainingUnitEmployeePlansMember" xlink:label="loc_hwkn_BargainingUnitEmployeePlansMember_6D2CDE7AB80CA7AF212E6C5522A766DF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollectiveBargainingArrangementDomain_28E406FA63464C5D3E246C5522A76FD7" xlink:to="loc_hwkn_BargainingUnitEmployeePlansMember_6D2CDE7AB80CA7AF212E6C5522A766DF" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DeferredCompensationPlanSubsequentEmployeesHiredMaximumAnnualProfitSharingPercentageComparedtoEmployeesHiredBeforeBenchmarkDate" xlink:label="loc_hwkn_DeferredCompensationPlanSubsequentEmployeesHiredMaximumAnnualProfitSharingPercentageComparedtoEmployeesHiredBeforeBenchmarkDate_19B750534A658FB1C6A86C5522A70909" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_DeferredCompensationPlanSubsequentEmployeesHiredMaximumAnnualProfitSharingPercentageComparedtoEmployeesHiredBeforeBenchmarkDate_19B750534A658FB1C6A86C5522A70909" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DeferredCompensationAnnualProfitSharingPerEmployeePercent" xlink:label="loc_hwkn_DeferredCompensationAnnualProfitSharingPerEmployeePercent_9412B0EE9BE3BFD2839A6C5522A7E955" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_DeferredCompensationAnnualProfitSharingPerEmployeePercent_9412B0EE9BE3BFD2839A6C5522A7E955" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_DefinedContributionPlanMinimumAnnualProfitSharingPerEmployeePercent" xlink:label="loc_hwkn_DefinedContributionPlanMinimumAnnualProfitSharingPerEmployeePercent_E9EB17625FAF8461EF376C5522A75D9A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_DefinedContributionPlanMinimumAnnualProfitSharingPerEmployeePercent_E9EB17625FAF8461EF376C5522A75D9A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_46513E4A49BB0507B1836C5522A7FE34" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_46513E4A49BB0507B1836C5522A7FE34" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_EmployeeStockOwnershipPlanESOPSubsequentEmployeesHiredMaximumAnnualProfitSharingPercentageComparedtoEmployeesHiredBeforeBenchmarkDate" xlink:label="loc_hwkn_EmployeeStockOwnershipPlanESOPSubsequentEmployeesHiredMaximumAnnualProfitSharingPercentageComparedtoEmployeesHiredBeforeBenchmarkDate_94E483CD0550E2473D466C5522A8417C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_EmployeeStockOwnershipPlanESOPSubsequentEmployeesHiredMaximumAnnualProfitSharingPercentageComparedtoEmployeesHiredBeforeBenchmarkDate_94E483CD0550E2473D466C5522A8417C" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_EmployeeStockOwnershipPlanEsopCompensationExpenseMaximumPercentOfEligibleCompensation" xlink:label="loc_hwkn_EmployeeStockOwnershipPlanEsopCompensationExpenseMaximumPercentOfEligibleCompensation_371EB81C126174A8842C6C5522A851A7" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_EmployeeStockOwnershipPlanEsopCompensationExpenseMaximumPercentOfEligibleCompensation_371EB81C126174A8842C6C5522A851A7" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_Percentageofeligiblesalariescontributedtothenonqualifieddeferredcompensationplan" xlink:label="loc_hwkn_Percentageofeligiblesalariescontributedtothenonqualifieddeferredcompensationplan_A54389C42FB7DB70F7ED6C5522A838CA" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_Percentageofeligiblesalariescontributedtothenonqualifieddeferredcompensationplan_A54389C42FB7DB70F7ED6C5522A838CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_FF933AB070E2D5CA3BA26C5522A8A8EA" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_FF933AB070E2D5CA3BA26C5522A8A8EA" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_EmployeeStockOwnershipPlanESOPCompensationExpensePercentofEligibleCompensation" xlink:label="loc_hwkn_EmployeeStockOwnershipPlanESOPCompensationExpensePercentofEligibleCompensation_E3A49E32544A7A7E42276C5522A82DBE" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_E03E199F354781B91D6F6C5522A7F9EC" xlink:to="loc_hwkn_EmployeeStockOwnershipPlanESOPCompensationExpensePercentofEligibleCompensation_E3A49E32544A7A7E42276C5522A82DBE" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SegmentInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_ED358C7BE704890BCBB54FE16066747C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_5422AADB649D8CE6CB054FE16066C0CA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ED358C7BE704890BCBB54FE16066747C" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_5422AADB649D8CE6CB054FE16066C0CA" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_55699496F51A8C4456E24FE160662F51" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_5422AADB649D8CE6CB054FE16066C0CA" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_55699496F51A8C4456E24FE160662F51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_55699496F51A8C4456E24FE160662F51" xlink:to="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_55699496F51A8C4456E24FE160662F51" xlink:to="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_IndustrialMember" xlink:label="loc_hwkn_IndustrialMember_808CEE338F40B9F846594FE1606613B4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364" xlink:to="loc_hwkn_IndustrialMember_808CEE338F40B9F846594FE1606613B4" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_WaterTreatmentMember" xlink:label="loc_hwkn_WaterTreatmentMember_A25B639BB82CDC0C55624FE16066F373" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364" xlink:to="loc_hwkn_WaterTreatmentMember_A25B639BB82CDC0C55624FE16066F373" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_HealthandNutritionMember" xlink:label="loc_hwkn_HealthandNutritionMember_DE0C706D4ADD71491DB44FE160662B3A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364" xlink:to="loc_hwkn_HealthandNutritionMember_DE0C706D4ADD71491DB44FE160662B3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaterialReconcilingItemsMember" xlink:label="loc_us-gaap_MaterialReconcilingItemsMember_D024C84D76D0609E1CEA4FE16066B5CF" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_750C2A92715ED654499B4FE160669364" xlink:to="loc_us-gaap_MaterialReconcilingItemsMember_D024C84D76D0609E1CEA4FE16066B5CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationAdditionalInformationAbstract" xlink:label="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ED358C7BE704890BCBB54FE16066747C" xlink:to="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_45707FAFF1AA4AA9D93C4FE1606752C0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_us-gaap_SalesRevenueNet_45707FAFF1AA4AA9D93C4FE1606752C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_5ADDE09FD322149CC8CB4FE160673892" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_us-gaap_GrossProfit_5ADDE09FD322149CC8CB4FE160673892" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_236A75FA2B3CADD87E624FE160676E13" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_236A75FA2B3CADD87E624FE160676E13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_8FE80D905CFD6F132D4E4FE16067C6FE" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_8FE80D905CFD6F132D4E4FE16067C6FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_54F47AEAAB5C52778DD84FE1606C545A" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_us-gaap_OperatingIncomeLoss_54F47AEAAB5C52778DD84FE1606C545A" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_AssetsNotAllocatedToReportingSegment" xlink:label="loc_hwkn_AssetsNotAllocatedToReportingSegment_4416C6BD287D6970C18D4FE1606C0940" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_hwkn_AssetsNotAllocatedToReportingSegment_4416C6BD287D6970C18D4FE1606C0940" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_4758D4FE1B7C2F2313024FE1606C2C3F" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationAdditionalInformationAbstract_69591B519F03B0BC2BE34FE16066D98A" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_4758D4FE1B7C2F2313024FE1606C2C3F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SegmentInformationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SegmentInformationTextualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6BEB079F67A6209B79E34A8929AE1940" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6BEB079F67A6209B79E34A8929AE1940" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_17A9F6FDE6B080FEDE974A8929AFD0ED" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6BEB079F67A6209B79E34A8929AE1940" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_17A9F6FDE6B080FEDE974A8929AFD0ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_17A9F6FDE6B080FEDE974A8929AFD0ED" xlink:to="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_17A9F6FDE6B080FEDE974A8929AFD0ED" xlink:to="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_HealthandNutritionMember" xlink:label="loc_hwkn_HealthandNutritionMember_985D0ADC4FB6903FAB6A4A8929B2F42D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C" xlink:to="loc_hwkn_HealthandNutritionMember_985D0ADC4FB6903FAB6A4A8929B2F42D" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_IndustrialMember" xlink:label="loc_hwkn_IndustrialMember_A03D53C95D300C7FAFBF4A8929B2A1ED" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C" xlink:to="loc_hwkn_IndustrialMember_A03D53C95D300C7FAFBF4A8929B2A1ED" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_WaterTreatmentMember" xlink:label="loc_hwkn_WaterTreatmentMember_CCD7286678564387B90D4A8929B28D04" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_82854D2EAD6EB34941B84A8929B0312C" xlink:to="loc_hwkn_WaterTreatmentMember_CCD7286678564387B90D4A8929B28D04" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_16C8F956890F1EB69F274A8929B2B08F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6BEB079F67A6209B79E34A8929AE1940" xlink:to="loc_us-gaap_StatementScenarioAxis_16C8F956890F1EB69F274A8929B2B08F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_97C855614D84BBFD47DE4A8929B2AA12_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_16C8F956890F1EB69F274A8929B2B08F" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_97C855614D84BBFD47DE4A8929B2AA12_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_97C855614D84BBFD47DE4A8929B2AA12" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_16C8F956890F1EB69F274A8929B2B08F" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_97C855614D84BBFD47DE4A8929B2AA12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioPreviouslyReportedMember" xlink:label="loc_us-gaap_ScenarioPreviouslyReportedMember_C87B9D96A5B3EE69EE584A8929B23F16" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_97C855614D84BBFD47DE4A8929B2AA12" xlink:to="loc_us-gaap_ScenarioPreviouslyReportedMember_C87B9D96A5B3EE69EE584A8929B23F16" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioPlanMember" xlink:label="loc_us-gaap_ScenarioPlanMember_8ED31F4BA5BCEE8AD3B04A8929B3D1ED" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_97C855614D84BBFD47DE4A8929B2AA12" xlink:to="loc_us-gaap_ScenarioPlanMember_8ED31F4BA5BCEE8AD3B04A8929B3D1ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_1740BB2DB40EC6E1A8564A8929B30480" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_6BEB079F67A6209B79E34A8929AE1940" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_1740BB2DB40EC6E1A8564A8929B30480" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_58712D56CB13AE9523744A8929B3FE05_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_1740BB2DB40EC6E1A8564A8929B30480" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_58712D56CB13AE9523744A8929B3FE05_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_58712D56CB13AE9523744A8929B3FE05" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_1740BB2DB40EC6E1A8564A8929B30480" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_58712D56CB13AE9523744A8929B3FE05" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_StauberPerformanceIngredientsMember" xlink:label="loc_hwkn_StauberPerformanceIngredientsMember_042EB334B142D8E8EF574A8929B3FA05" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_58712D56CB13AE9523744A8929B3FE05" xlink:to="loc_hwkn_StauberPerformanceIngredientsMember_042EB334B142D8E8EF574A8929B3FA05" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_416617078DF1064DAD1D4A8929B4DFD4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_us-gaap_NumberOfReportableSegments_416617078DF1064DAD1D4A8929B4DFD4" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_Corporateexpensesallocatedtosegments" xlink:label="loc_hwkn_Corporateexpensesallocatedtosegments_0522EC4E84FB0D7D8DEC4A8929B41B9F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_hwkn_Corporateexpensesallocatedtosegments_0522EC4E84FB0D7D8DEC4A8929B41B9F" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_IntersegmentSales" xlink:label="loc_hwkn_IntersegmentSales_516CD05F3711FBF27E534A8929B478BE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_hwkn_IntersegmentSales_516CD05F3711FBF27E534A8929B478BE" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_NumberOfOperatingSegmentsAggregated" xlink:label="loc_hwkn_NumberOfOperatingSegmentsAggregated_5B282D04CAB6B0C7A7754A8929B41282" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_hwkn_NumberOfOperatingSegmentsAggregated_5B282D04CAB6B0C7A7754A8929B41282" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_EntityWideRevenueMajorCustomerNumberOfCustomers" xlink:label="loc_hwkn_EntityWideRevenueMajorCustomerNumberOfCustomers_2C91EF1AD5008471B6544A8929B40F02" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_hwkn_EntityWideRevenueMajorCustomerNumberOfCustomers_2C91EF1AD5008471B6544A8929B40F02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_7F023E966D4D9499E99F4A8929B448A8" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_9AD5A582AD9DE79AD4964A8929B3D888" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_7F023E966D4D9499E99F4A8929B448A8" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SelectedQuarterlyFinancialDataUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/SelectedQuarterlyFinancialDataUnauditedTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ShareBasedCompensation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ShareBasedCompensationRestrictedAndPerformanceSharesRollforwardDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_BD8702BCFB1A5D21C61D834E61DFCD13" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6C014A89114C15BA4D82834E61DE042E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_BD8702BCFB1A5D21C61D834E61DFCD13" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6C014A89114C15BA4D82834E61DE042E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_A3343EECD9A15F6637C3834E61DFDD6F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6C014A89114C15BA4D82834E61DE042E" xlink:to="loc_us-gaap_AwardTypeAxis_A3343EECD9A15F6637C3834E61DFDD6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_237C0248D74BABDD7BC3834E61DF4487_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_A3343EECD9A15F6637C3834E61DFDD6F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_237C0248D74BABDD7BC3834E61DF4487_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_237C0248D74BABDD7BC3834E61DF4487" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_A3343EECD9A15F6637C3834E61DFDD6F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_237C0248D74BABDD7BC3834E61DF4487" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_099129CC660B5B5ABB2C834E61DF8F25" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_237C0248D74BABDD7BC3834E61DF4487" xlink:to="loc_us-gaap_PerformanceSharesMember_099129CC660B5B5ABB2C834E61DF8F25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_98030769A60715AC7F24834E61DFAB87" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_237C0248D74BABDD7BC3834E61DF4487" xlink:to="loc_us-gaap_RestrictedStockMember_98030769A60715AC7F24834E61DFAB87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_79977D80CA7C74B566E2834E61DF0A0A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_BD8702BCFB1A5D21C61D834E61DFCD13" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_79977D80CA7C74B566E2834E61DF0A0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_A6B56140C794989385A9834E61DF5363" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_79977D80CA7C74B566E2834E61DF0A0A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_A6B56140C794989385A9834E61DF5363" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_3CCB0F10564CD53FA385834E61DF4E5C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_79977D80CA7C74B566E2834E61DF0A0A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_3CCB0F10564CD53FA385834E61DF4E5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_07E0744CA837CEB833AE834E61DF9DCA" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_79977D80CA7C74B566E2834E61DF0A0A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_07E0744CA837CEB833AE834E61DF9DCA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_7574A0948CEB5C8F62D2834E61DF6976" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_79977D80CA7C74B566E2834E61DF0A0A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_7574A0948CEB5C8F62D2834E61DF6976" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_2B59EC9A72885079339B834E61E07E90" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_BD8702BCFB1A5D21C61D834E61DFCD13" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_2B59EC9A72885079339B834E61E07E90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_A04B5EF76298FF8A282B834E61E0198A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_2B59EC9A72885079339B834E61E07E90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_A04B5EF76298FF8A282B834E61E0198A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_650D8E713B802DDB256A834E61E0E15A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_2B59EC9A72885079339B834E61E07E90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_650D8E713B802DDB256A834E61E0E15A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_EA01FBEDD6B80DA3AC06834E61E0B0AB" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_2B59EC9A72885079339B834E61E07E90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_EA01FBEDD6B80DA3AC06834E61E0B0AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_848BB2DFEC1F1E6104B6834E61E0345B" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_2B59EC9A72885079339B834E61E07E90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_848BB2DFEC1F1E6104B6834E61E0345B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ShareBasedCompensationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C7E0DCDAD5514DBE9EC86C5522674E6A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FF8FBD379DDDB4A414C06C552266B9EA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C7E0DCDAD5514DBE9EC86C5522674E6A" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FF8FBD379DDDB4A414C06C552266B9EA" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_30A60B657587A78055A46C552266CABB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FF8FBD379DDDB4A414C06C552266B9EA" xlink:to="loc_us-gaap_AwardTypeAxis_30A60B657587A78055A46C552266CABB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D6EFBC4B5B8880D4A9026C552266A359_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_30A60B657587A78055A46C552266CABB" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D6EFBC4B5B8880D4A9026C552266A359_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D6EFBC4B5B8880D4A9026C552266A359" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_30A60B657587A78055A46C552266CABB" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D6EFBC4B5B8880D4A9026C552266A359" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_E12C33717B26A75CDED86C552266B674" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D6EFBC4B5B8880D4A9026C552266A359" xlink:to="loc_us-gaap_PerformanceSharesMember_E12C33717B26A75CDED86C552266B674" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_A60AB67E86D982DD8A066C55226734F7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D6EFBC4B5B8880D4A9026C552266A359" xlink:to="loc_us-gaap_RestrictedStockMember_A60AB67E86D982DD8A066C55226734F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_3C7FD30D1FC058C6F5876C552267FC7C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C7E0DCDAD5514DBE9EC86C5522674E6A" xlink:to="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_3C7FD30D1FC058C6F5876C552267FC7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationNonemployeeDirectorStockAwardPlanActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationNonemployeeDirectorStockAwardPlanActivityTableTextBlock_03BD3A5CD92A038B33186C552267BD74" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C7E0DCDAD5514DBE9EC86C5522674E6A" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationNonemployeeDirectorStockAwardPlanActivityTableTextBlock_03BD3A5CD92A038B33186C552267BD74" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ShareBasedCompensationTextualDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3AF19944B9EAD600E94D6EC3C5D6A534" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3AF19944B9EAD600E94D6EC3C5D6A534" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_7DEC02131E77DDB2B9DB6EC3C5D683C2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3AF19944B9EAD600E94D6EC3C5D6A534" xlink:to="loc_us-gaap_AwardTypeAxis_7DEC02131E77DDB2B9DB6EC3C5D683C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1767F2B461ACD73D8E2E6EC3C5D7D5F3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_7DEC02131E77DDB2B9DB6EC3C5D683C2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1767F2B461ACD73D8E2E6EC3C5D7D5F3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1767F2B461ACD73D8E2E6EC3C5D7D5F3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_7DEC02131E77DDB2B9DB6EC3C5D683C2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1767F2B461ACD73D8E2E6EC3C5D7D5F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_403737A1C9F775D52E776EC3C5D7C55D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1767F2B461ACD73D8E2E6EC3C5D7D5F3" xlink:to="loc_us-gaap_PerformanceSharesMember_403737A1C9F775D52E776EC3C5D7C55D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_6AA2D784C15F1485724B6EC3C5D8DFB7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1767F2B461ACD73D8E2E6EC3C5D7D5F3" xlink:to="loc_us-gaap_RestrictedStockMember_6AA2D784C15F1485724B6EC3C5D8DFB7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_71E2E79A88012C8F09C86EC3C5D8793E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3AF19944B9EAD600E94D6EC3C5D6A534" xlink:to="loc_us-gaap_RangeAxis_71E2E79A88012C8F09C86EC3C5D8793E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_72C0566BB303D60D6BBD6EC3C5D82076_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RangeAxis_71E2E79A88012C8F09C86EC3C5D8793E" xlink:to="loc_us-gaap_RangeMember_72C0566BB303D60D6BBD6EC3C5D82076_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_72C0566BB303D60D6BBD6EC3C5D82076" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RangeAxis_71E2E79A88012C8F09C86EC3C5D8793E" xlink:to="loc_us-gaap_RangeMember_72C0566BB303D60D6BBD6EC3C5D82076" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_F730902A2BCF6525B07C6EC3C5D82997" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RangeMember_72C0566BB303D60D6BBD6EC3C5D82076" xlink:to="loc_us-gaap_WeightedAverageMember_F730902A2BCF6525B07C6EC3C5D82997" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_32CABC87E0827A3C56156EC3C5D9DA87" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_32CABC87E0827A3C56156EC3C5D9DA87" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_RangeOfRestrictedStockToBeIssuedMinimum" xlink:label="loc_hwkn_RangeOfRestrictedStockToBeIssuedMinimum_B6D0A7FC8909D3A211B16EC3C5D91037" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_hwkn_RangeOfRestrictedStockToBeIssuedMinimum_B6D0A7FC8909D3A211B16EC3C5D91037" xlink:type="arc" />
    <link:loc xlink:href="hwkn-20180401.xsd#hwkn_RangeOfRestrictedStockToBeIssuedMaximum" xlink:label="loc_hwkn_RangeOfRestrictedStockToBeIssuedMaximum_555F5E6B1E548853EA176EC3C5D997CF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_hwkn_RangeOfRestrictedStockToBeIssuedMaximum_555F5E6B1E548853EA176EC3C5D997CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_E797796D36485EACA9296EC3C5D9BACF" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_E797796D36485EACA9296EC3C5D9BACF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_6F14EFD9B4D781B3E9CD6EC3C5D95B99" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_6F14EFD9B4D781B3E9CD6EC3C5D95B99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_7F1126C11050448822716EC3C5DAB545" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_7F1126C11050448822716EC3C5DAB545" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_3E4707BCF0EB2B9CF5D96EC3C5DA949F" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_3E4707BCF0EB2B9CF5D96EC3C5DA949F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_982C524275E6E467F26D6EC3C5DA3326" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_982C524275E6E467F26D6EC3C5DA3326" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9B1E965111ED0992D14D6EC3C5DAB86C" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D2820EA27F8AB3038C1B6EC3C5D82903" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9B1E965111ED0992D14D6EC3C5DAB86C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ShareRepurchaseProgram" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ShareRepurchaseProgramDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_17ADF9F2323FD88C274F46F61162C769" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_87FBE7B10DB13F811F1F46F611615AB7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_17ADF9F2323FD88C274F46F61162C769" xlink:to="loc_us-gaap_StatementTable_87FBE7B10DB13F811F1F46F611615AB7" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3E665494A38EE882C4E846F6116179F1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_87FBE7B10DB13F811F1F46F611615AB7" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3E665494A38EE882C4E846F6116179F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F851B7E6915D4B346FCD46F6116245C3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3E665494A38EE882C4E846F6116179F1" xlink:to="loc_us-gaap_EquityComponentDomain_F851B7E6915D4B346FCD46F6116245C3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F851B7E6915D4B346FCD46F6116245C3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3E665494A38EE882C4E846F6116179F1" xlink:to="loc_us-gaap_EquityComponentDomain_F851B7E6915D4B346FCD46F6116245C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_914877B7B6533F4E629E46F61162C1FF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_F851B7E6915D4B346FCD46F6116245C3" xlink:to="loc_us-gaap_CommonStockMember_914877B7B6533F4E629E46F61162C1FF" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ValuationAndQualifyingAccountsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.hawkinsinc.com/role/ValuationAndQualifyingAccountsNotes" xlink:type="extended" />
</link:linkbase>