<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019ce8ce-fd2a-7ec1-b6d4-d5b52aceac0b,g:43b78fc5-c76c-41c5-8d08-90c46df590e9-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.buckle.com/role/DocumentandEntityInformation" xlink:type="simple" xlink:href="bke-20260131.xsd#DocumentandEntityInformation"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/DocumentandEntityInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019ce8ce-fe06-7df3-bc6c-9b555e337555" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019ce8ce-fe06-73bc-a981-ad29a104ace5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019ce8ce-fe06-7df3-bc6c-9b555e337555" xlink:to="loc_dei_DocumentInformationTable_019ce8ce-fe06-73bc-a981-ad29a104ace5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationDocumentAxis_019ce8ce-fe06-77c4-8302-002a0129486b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationDocumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019ce8ce-fe06-73bc-a981-ad29a104ace5" xlink:to="loc_dei_DocumentInformationDocumentAxis_019ce8ce-fe06-77c4-8302-002a0129486b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentDomain_019ce8ce-fe06-77c4-8302-002a0129486b_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_DocumentInformationDocumentAxis_019ce8ce-fe06-77c4-8302-002a0129486b" xlink:to="loc_dei_DocumentDomain_019ce8ce-fe06-77c4-8302-002a0129486b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentDomain_019ce8ce-fe06-7908-9ed6-fb1121b9a903" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_DocumentInformationDocumentAxis_019ce8ce-fe06-77c4-8302-002a0129486b" xlink:to="loc_dei_DocumentDomain_019ce8ce-fe06-7908-9ed6-fb1121b9a903" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="bke-20260131.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019ce8ce-fe06-749c-951f-24e8f4bdf81d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019ce8ce-fe06-79c1-b6ac-3edca8d47c62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019ce8ce-fe06-749c-951f-24e8f4bdf81d" xlink:to="loc_us-gaap_StatementTable_019ce8ce-fe06-79c1-b6ac-3edca8d47c62" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019ce8ce-fe06-7ac1-8fa1-377a5d2b8dc0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019ce8ce-fe06-79c1-b6ac-3edca8d47c62" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019ce8ce-fe06-7ac1-8fa1-377a5d2b8dc0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7ac1-8fa1-377a5d2b8dc0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ce8ce-fe06-7ac1-8fa1-377a5d2b8dc0" xlink:to="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7ac1-8fa1-377a5d2b8dc0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7cf8-b685-7d5fe3cba03f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ce8ce-fe06-7ac1-8fa1-377a5d2b8dc0" xlink:to="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7cf8-b685-7d5fe3cba03f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019ce8ce-fe06-7c9d-957f-805b18ec3509" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7cf8-b685-7d5fe3cba03f" xlink:to="loc_us-gaap_CommonStockMember_019ce8ce-fe06-7c9d-957f-805b18ec3509" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019ce8ce-fe06-7948-b9ed-cb1966e5f851" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7cf8-b685-7d5fe3cba03f" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019ce8ce-fe06-7948-b9ed-cb1966e5f851" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019ce8ce-fe06-70ac-8d25-aae30a9b8a0b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ce8ce-fe06-7cf8-b685-7d5fe3cba03f" xlink:to="loc_us-gaap_RetainedEarningsMember_019ce8ce-fe06-70ac-8d25-aae30a9b8a0b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019ce8ce-fe06-749c-951f-24e8f4bdf81d" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_019ce8ce-fe06-7eeb-a465-c4028cbb0cad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_SharesOutstanding_019ce8ce-fe06-7eeb-a465-c4028cbb0cad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019ce8ce-fe06-7a98-bb31-e5a09b781306" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_StockholdersEquity_019ce8ce-fe06-7a98-bb31-e5a09b781306" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019ce8ce-fe06-7fb7-898f-a7660c79b09f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_NetIncomeLoss_019ce8ce-fe06-7fb7-898f-a7660c79b09f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_019ce8ce-fe06-7dae-b0ee-6349e0764f53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_DividendsCommonStockCash_019ce8ce-fe06-7dae-b0ee-6349e0764f53" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019ce8ce-fe06-794c-b4b3-bd3afea82e00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019ce8ce-fe06-794c-b4b3-bd3afea82e00" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019ce8ce-fe06-79ab-a1ad-f992ff1e44a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019ce8ce-fe06-79ab-a1ad-f992ff1e44a7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_019ce8ce-fe06-74ed-8642-97bfc8f3ff47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019ce8ce-fe06-7f90-9b5c-f64ce6ac70da" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_019ce8ce-fe06-74ed-8642-97bfc8f3ff47" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_019ce8ce-fe06-73ed-83d4-13bdc0c6e6da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019ce8ce-fe06-7430-97f8-c1907fd41877" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesTable_019ce8ce-fe06-7fd9-bbf6-68f34bbe686e" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesTable_019ce8ce-fe06-7fd9-bbf6-68f34bbe686e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe06-756b-9d45-a33abe63f2d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_SignificantAccountingPoliciesTable_019ce8ce-fe06-7fd9-bbf6-68f34bbe686e" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe06-756b-9d45-a33abe63f2d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe06-756b-9d45-a33abe63f2d9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe06-756b-9d45-a33abe63f2d9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe06-756b-9d45-a33abe63f2d9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe06-768a-84fe-1029c517b967" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe06-756b-9d45-a33abe63f2d9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe06-768a-84fe-1029c517b967" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesReturnsAndAllowancesMember_019ce8ce-fe06-74e5-92bc-e6238f8dcebf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesReturnsAndAllowancesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe06-768a-84fe-1029c517b967" xlink:to="loc_us-gaap_SalesReturnsAndAllowancesMember_019ce8ce-fe06-74e5-92bc-e6238f8dcebf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe06-7f64-9c7f-d97c8024d559" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_SignificantAccountingPoliciesTable_019ce8ce-fe06-7fd9-bbf6-68f34bbe686e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe06-7f64-9c7f-d97c8024d559" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe06-7f64-9c7f-d97c8024d559_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe06-7f64-9c7f-d97c8024d559" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe06-7f64-9c7f-d97c8024d559_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe06-7944-8113-a8d0b2adccce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe06-7f64-9c7f-d97c8024d559" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe06-7944-8113-a8d0b2adccce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_PropertyAndEquipmentExcludingBuildingsMember_019ce8ce-fe06-7741-9548-6f72e1fd30d5" xlink:href="bke-20260131.xsd#bke_PropertyAndEquipmentExcludingBuildingsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe06-7944-8113-a8d0b2adccce" xlink:to="loc_bke_PropertyAndEquipmentExcludingBuildingsMember_019ce8ce-fe06-7741-9548-6f72e1fd30d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_019ce8ce-fe06-7372-96e9-2e7a49784651" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe06-7944-8113-a8d0b2adccce" xlink:to="loc_us-gaap_BuildingMember_019ce8ce-fe06-7372-96e9-2e7a49784651" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019ce8ce-fe06-7fe9-b47b-c7231f191726" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_SignificantAccountingPoliciesTable_019ce8ce-fe06-7fd9-bbf6-68f34bbe686e" xlink:to="loc_srt_RangeAxis_019ce8ce-fe06-7fe9-b47b-c7231f191726" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ce8ce-fe06-7fe9-b47b-c7231f191726_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019ce8ce-fe06-7fe9-b47b-c7231f191726" xlink:to="loc_srt_RangeMember_019ce8ce-fe06-7fe9-b47b-c7231f191726_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ce8ce-fe06-7bf9-af7a-9271d43d8c20" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019ce8ce-fe06-7fe9-b47b-c7231f191726" xlink:to="loc_srt_RangeMember_019ce8ce-fe06-7bf9-af7a-9271d43d8c20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019ce8ce-fe06-7050-9979-da1216f5d7cd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ce8ce-fe06-7bf9-af7a-9271d43d8c20" xlink:to="loc_srt_MinimumMember_019ce8ce-fe06-7050-9979-da1216f5d7cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019ce8ce-fe06-730c-b613-cf574b622348" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ce8ce-fe06-7bf9-af7a-9271d43d8c20" xlink:to="loc_srt_MaximumMember_019ce8ce-fe06-730c-b613-cf574b622348" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019ce8ce-fe06-73ab-8cb1-6c49f8762253" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_SignificantAccountingPoliciesTable_019ce8ce-fe06-7fd9-bbf6-68f34bbe686e" xlink:to="loc_srt_ProductOrServiceAxis_019ce8ce-fe06-73ab-8cb1-6c49f8762253" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ce8ce-fe06-73ab-8cb1-6c49f8762253_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019ce8ce-fe06-73ab-8cb1-6c49f8762253" xlink:to="loc_srt_ProductsAndServicesDomain_019ce8ce-fe06-73ab-8cb1-6c49f8762253_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ce8ce-fe06-76cb-94ae-cb0e1a548074" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019ce8ce-fe06-73ab-8cb1-6c49f8762253" xlink:to="loc_srt_ProductsAndServicesDomain_019ce8ce-fe06-76cb-94ae-cb0e1a548074" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_GiftCertificatesRedeemableMember_019ce8ce-fe06-741f-8a50-3d1d38063e98" xlink:href="bke-20260131.xsd#bke_GiftCertificatesRedeemableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe06-76cb-94ae-cb0e1a548074" xlink:to="loc_bke_GiftCertificatesRedeemableMember_019ce8ce-fe06-741f-8a50-3d1d38063e98" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_EstimatedFutureLoyaltyRewardsMember_019ce8ce-fe06-71b1-9f14-610ba557f71a" xlink:href="bke-20260131.xsd#bke_EstimatedFutureLoyaltyRewardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe06-76cb-94ae-cb0e1a548074" xlink:to="loc_bke_EstimatedFutureLoyaltyRewardsMember_019ce8ce-fe06-71b1-9f14-610ba557f71a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesNatureOfOperationsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019ce8ce-fe06-77e4-923a-1258f2d33beb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:to="loc_us-gaap_NumberOfReportableSegments_019ce8ce-fe06-77e4-923a-1258f2d33beb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfStores_019ce8ce-fe06-764f-a292-069cf24cd082" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfStores"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:to="loc_us-gaap_NumberOfStores_019ce8ce-fe06-764f-a292-069cf24cd082" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfStatesInWhichEntityOperates_019ce8ce-fe06-76e1-81ae-7880933b0b27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfStatesInWhichEntityOperates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:to="loc_us-gaap_NumberOfStatesInWhichEntityOperates_019ce8ce-fe06-76e1-81ae-7880933b0b27" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_NumberOfStoresOpenedDuringPeriod_019ce8ce-fe06-7c20-a23a-b97a5d5bc064" xlink:href="bke-20260131.xsd#bke_NumberOfStoresOpenedDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:to="loc_bke_NumberOfStoresOpenedDuringPeriod_019ce8ce-fe06-7c20-a23a-b97a5d5bc064" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_NumberOfStoresRemodeledDuringPeriod_019ce8ce-fe06-7550-be16-696206b844c2" xlink:href="bke-20260131.xsd#bke_NumberOfStoresRemodeledDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:to="loc_bke_NumberOfStoresRemodeledDuringPeriod_019ce8ce-fe06-7550-be16-696206b844c2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_NumberofStoresClosedDuringPeriod_019ce8ce-fe06-7fa0-911a-2b39d774b91c" xlink:href="bke-20260131.xsd#bke_NumberofStoresClosedDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesNatureOfOperationsAbstract_019ce8ce-fe06-7baf-8ab6-49c3eb582bcf" xlink:to="loc_bke_NumberofStoresClosedDuringPeriod_019ce8ce-fe06-7fa0-911a-2b39d774b91c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesRevenueRecognitionAbstract_019ce8ce-fe06-7f9b-9ba3-8b83eda65b7e" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesRevenueRecognitionAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesRevenueRecognitionAbstract_019ce8ce-fe06-7f9b-9ba3-8b83eda65b7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019ce8ce-fe06-79a4-a7d3-5b5d8ddef55f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesRevenueRecognitionAbstract_019ce8ce-fe06-7f9b-9ba3-8b83eda65b7e" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019ce8ce-fe06-79a4-a7d3-5b5d8ddef55f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_019ce8ce-fe06-7901-b59d-5c27f4756bb5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesRevenueRecognitionAbstract_019ce8ce-fe06-7f9b-9ba3-8b83eda65b7e" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_019ce8ce-fe06-7901-b59d-5c27f4756bb5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesInventoriesAbstract_019ce8ce-fe06-7d1a-a5d1-6affc59426c9" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesInventoriesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesInventoriesAbstract_019ce8ce-fe06-7d1a-a5d1-6affc59426c9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryValuationReserves_019ce8ce-fe06-7679-b25f-06b766087b0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryValuationReserves"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesInventoriesAbstract_019ce8ce-fe06-7d1a-a5d1-6affc59426c9" xlink:to="loc_us-gaap_InventoryValuationReserves_019ce8ce-fe06-7679-b25f-06b766087b0e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesPropertyAndEquipmentAbstract_019ce8ce-fe06-7d23-92bd-499404706e1b" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesPropertyAndEquipmentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesPropertyAndEquipmentAbstract_019ce8ce-fe06-7d23-92bd-499404706e1b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019ce8ce-fe06-775c-b69a-1ec68138ba63" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesPropertyAndEquipmentAbstract_019ce8ce-fe06-7d23-92bd-499404706e1b" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019ce8ce-fe06-775c-b69a-1ec68138ba63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesAdvertisingCostsAbstract_019ce8ce-fe06-7484-8a95-e2353d9204c8" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesAdvertisingCostsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesAdvertisingCostsAbstract_019ce8ce-fe06-7484-8a95-e2353d9204c8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_019ce8ce-fe06-7450-a275-51eb7691255c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesAdvertisingCostsAbstract_019ce8ce-fe06-7484-8a95-e2353d9204c8" xlink:to="loc_us-gaap_AdvertisingExpense_019ce8ce-fe06-7450-a275-51eb7691255c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesHealthCareCostsAbstract_019ce8ce-fe06-75f9-81d0-258310ccb131" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesHealthCareCostsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesHealthCareCostsAbstract_019ce8ce-fe06-75f9-81d0-258310ccb131" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SelfInsurancePlanYearLimitPerEmployee_019ce8ce-fe06-7ff1-af09-61af0e81d27a" xlink:href="bke-20260131.xsd#bke_SelfInsurancePlanYearLimitPerEmployee"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesHealthCareCostsAbstract_019ce8ce-fe06-75f9-81d0-258310ccb131" xlink:to="loc_bke_SelfInsurancePlanYearLimitPerEmployee_019ce8ce-fe06-7ff1-af09-61af0e81d27a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ReserveForSelfInsuredEmployeeHealthCareClaims_019ce8ce-fe06-70b4-8481-4addad7405eb" xlink:href="bke-20260131.xsd#bke_ReserveForSelfInsuredEmployeeHealthCareClaims"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesHealthCareCostsAbstract_019ce8ce-fe06-75f9-81d0-258310ccb131" xlink:to="loc_bke_ReserveForSelfInsuredEmployeeHealthCareClaims_019ce8ce-fe06-70b4-8481-4addad7405eb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesLeasesAbstract_019ce8ce-fe06-70c4-a943-e5382a3885dc" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesLeasesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesLeasesAbstract_019ce8ce-fe06-70c4-a943-e5382a3885dc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019ce8ce-fe06-7cd6-9546-60c0dfd79806" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019ce8ce-fe06-7cd6-9546-60c0dfd79806" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019ce8ce-fe06-7511-ace6-66786dbe760a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019ce8ce-fe06-7511-ace6-66786dbe760a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesIncomeTaxesAbstract_019ce8ce-fe06-75d3-881b-18264a907dd4" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesIncomeTaxesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesIncomeTaxesAbstract_019ce8ce-fe06-75d3-881b-18264a907dd4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_IncomeTaxContingencyBenefitRecognitionModelPercent_019ce8ce-fe06-7105-a2df-cd02dd097ad0" xlink:href="bke-20260131.xsd#bke_IncomeTaxContingencyBenefitRecognitionModelPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesIncomeTaxesAbstract_019ce8ce-fe06-75d3-881b-18264a907dd4" xlink:to="loc_bke_IncomeTaxContingencyBenefitRecognitionModelPercent_019ce8ce-fe06-7105-a2df-cd02dd097ad0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SignificantAccountingPoliciesSupplementalCashFlowInformationAbstract_019ce8ce-fe06-75e6-9234-7b410077f281" xlink:href="bke-20260131.xsd#bke_SignificantAccountingPoliciesSupplementalCashFlowInformationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesLineItems_019ce8ce-fe06-722c-8ad9-7bc590485624" xlink:to="loc_bke_SignificantAccountingPoliciesSupplementalCashFlowInformationAbstract_019ce8ce-fe06-75e6-9234-7b410077f281" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_NonCashInvestingActivitiesIncreaseDecreaseInUnpaidPurchasesOfPropertyPlantAndEquipment_019ce8ce-fe06-7b4d-aa84-2094a9cdea72" xlink:href="bke-20260131.xsd#bke_NonCashInvestingActivitiesIncreaseDecreaseInUnpaidPurchasesOfPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesSupplementalCashFlowInformationAbstract_019ce8ce-fe06-75e6-9234-7b410077f281" xlink:to="loc_bke_NonCashInvestingActivitiesIncreaseDecreaseInUnpaidPurchasesOfPropertyPlantAndEquipment_019ce8ce-fe06-7b4d-aa84-2094a9cdea72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_AccountsPayableCapitalExpendituresCurrent_019ce8ce-fe06-7eeb-8bc6-22809270a539" xlink:href="bke-20260131.xsd#bke_AccountsPayableCapitalExpendituresCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesSupplementalCashFlowInformationAbstract_019ce8ce-fe06-75e6-9234-7b410077f281" xlink:to="loc_bke_AccountsPayableCapitalExpendituresCurrent_019ce8ce-fe06-7eeb-8bc6-22809270a539" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_019ce8ce-fe06-764f-b5ae-4ddeb5c681fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_SignificantAccountingPoliciesSupplementalCashFlowInformationAbstract_019ce8ce-fe06-75e6-9234-7b410077f281" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_019ce8ce-fe06-764f-b5ae-4ddeb5c681fb" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/INVESTMENTSScheduleofInvestmentsDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#INVESTMENTSScheduleofInvestmentsDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/INVESTMENTSScheduleofInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_019ce8ce-fe06-7b10-a834-0590eaa1e0a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable_019ce8ce-fe06-77fb-943f-be0c6215ef95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019ce8ce-fe06-7b10-a834-0590eaa1e0a6" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable_019ce8ce-fe06-77fb-943f-be0c6215ef95" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7662-8ac1-d8a8a467a67e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019ce8ce-fe06-77fb-943f-be0c6215ef95" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7662-8ac1-d8a8a467a67e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-7662-8ac1-d8a8a467a67e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7662-8ac1-d8a8a467a67e" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-7662-8ac1-d8a8a467a67e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-79a4-9e99-7220bed8b19f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7662-8ac1-d8a8a467a67e" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-79a4-9e99-7220bed8b19f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_019ce8ce-fe06-7b04-bc65-a13916ce9e32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-79a4-9e99-7220bed8b19f" xlink:to="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_019ce8ce-fe06-7b04-bc65-a13916ce9e32" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MutualFundMember_019ce8ce-fe06-762f-a25c-5561527cc5b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MutualFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-79a4-9e99-7220bed8b19f" xlink:to="loc_us-gaap_MutualFundMember_019ce8ce-fe06-762f-a25c-5561527cc5b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesClassifiedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019ce8ce-fe06-7b10-a834-0590eaa1e0a6" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019ce8ce-fe06-7e0b-84ea-9114a3ea6e1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019ce8ce-fe06-7e0b-84ea-9114a3ea6e1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019ce8ce-fe06-70bb-84d8-13df4e376cad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019ce8ce-fe06-70bb-84d8-13df4e376cad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019ce8ce-fe06-783a-9adc-021261dc20e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019ce8ce-fe06-783a-9adc-021261dc20e6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_OtherThanTemporaryImpairmentLossesInvestmentsHeldtoMaturitySecuritiesAtPointInTime_019ce8ce-fe06-74b6-b743-49dc74fc8e0d" xlink:href="bke-20260131.xsd#bke_OtherThanTemporaryImpairmentLossesInvestmentsHeldtoMaturitySecuritiesAtPointInTime"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:to="loc_bke_OtherThanTemporaryImpairmentLossesInvestmentsHeldtoMaturitySecuritiesAtPointInTime_019ce8ce-fe06-74b6-b743-49dc74fc8e0d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019ce8ce-fe06-7255-91d6-1750ec01dc97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesClassifiedAbstract_019ce8ce-fe06-767c-bf99-40b9b404d839" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019ce8ce-fe06-7255-91d6-1750ec01dc97" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019ce8ce-fe06-7b10-a834-0590eaa1e0a6" xlink:to="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiCost_019ce8ce-fe06-7022-8011-b7709fc48c24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:to="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiCost_019ce8ce-fe06-7022-8011-b7709fc48c24" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_TradingSecuritiesUnrealizedHoldingGainAtPointInTime_019ce8ce-fe06-7009-b931-d463b1a63c15" xlink:href="bke-20260131.xsd#bke_TradingSecuritiesUnrealizedHoldingGainAtPointInTime"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:to="loc_bke_TradingSecuritiesUnrealizedHoldingGainAtPointInTime_019ce8ce-fe06-7009-b931-d463b1a63c15" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_TradingSecuritiesUnrecognizedLoss_019ce8ce-fe06-7e26-b8f4-fe14d287910c" xlink:href="bke-20260131.xsd#bke_TradingSecuritiesUnrecognizedLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:to="loc_bke_TradingSecuritiesUnrecognizedLoss_019ce8ce-fe06-7e26-b8f4-fe14d287910c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_OtherThanTemporaryImpairmentLossesTradingSecuritiesSecuritiesAtPointInTime_019ce8ce-fe06-7d94-9b0c-3de5baf26302" xlink:href="bke-20260131.xsd#bke_OtherThanTemporaryImpairmentLossesTradingSecuritiesSecuritiesAtPointInTime"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:to="loc_bke_OtherThanTemporaryImpairmentLossesTradingSecuritiesSecuritiesAtPointInTime_019ce8ce-fe06-7d94-9b0c-3de5baf26302" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradingSecurities_019ce8ce-fe06-7df9-93ad-d0fd20ad96c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TradingSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtSecuritiesTradingAndEquitySecuritiesFvNiAbstract_019ce8ce-fe06-77c7-abdf-d8c52bf2cb16" xlink:to="loc_us-gaap_TradingSecurities_019ce8ce-fe06-7df9-93ad-d0fd20ad96c9" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/INVESTMENTSHeldToMaturitySecuritiesDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#INVESTMENTSHeldToMaturitySecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/INVESTMENTSHeldToMaturitySecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_019ce8ce-fe06-76d3-846b-3302ace51cf4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_019ce8ce-fe06-7ae0-ac83-24e5013160fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_019ce8ce-fe06-76d3-846b-3302ace51cf4" xlink:to="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_019ce8ce-fe06-7ae0-ac83-24e5013160fc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7b2c-aab5-8fd0563930b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_019ce8ce-fe06-7ae0-ac83-24e5013160fc" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7b2c-aab5-8fd0563930b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-7b2c-aab5-8fd0563930b5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7b2c-aab5-8fd0563930b5" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-7b2c-aab5-8fd0563930b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-73f3-92b1-d017b9dc98eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe06-7b2c-aab5-8fd0563930b5" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe06-73f3-92b1-d017b9dc98eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_019ce8ce-fe06-7c69-bd04-727bbb617f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_019ce8ce-fe06-76d3-846b-3302ace51cf4" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_019ce8ce-fe06-7c69-bd04-727bbb617f1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019ce8ce-fe06-7098-8254-d7bb7e13de5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_019ce8ce-fe06-7c69-bd04-727bbb617f1e" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019ce8ce-fe06-7098-8254-d7bb7e13de5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_019ce8ce-fe06-7185-87e9-26eda229afd0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_019ce8ce-fe06-7c69-bd04-727bbb617f1e" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount_019ce8ce-fe06-7185-87e9-26eda229afd0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecurities_019ce8ce-fe06-7e27-8a4a-19e192cb2846" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_019ce8ce-fe06-7c69-bd04-727bbb617f1e" xlink:to="loc_us-gaap_HeldToMaturitySecurities_019ce8ce-fe06-7e27-8a4a-19e192cb2846" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract_019ce8ce-fe06-7c65-8a58-9856e93d798f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_019ce8ce-fe06-76d3-846b-3302ace51cf4" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract_019ce8ce-fe06-7c65-8a58-9856e93d798f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019ce8ce-fe06-790c-b74d-63b9e0be65ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract_019ce8ce-fe06-7c65-8a58-9856e93d798f" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019ce8ce-fe06-790c-b74d-63b9e0be65ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019ce8ce-fe06-77d8-975c-5fff030f1632" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract_019ce8ce-fe06-7c65-8a58-9856e93d798f" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_019ce8ce-fe06-77d8-975c-5fff030f1632" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019ce8ce-fe06-77ed-b883-57430f070518" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract_019ce8ce-fe06-7c65-8a58-9856e93d798f" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019ce8ce-fe06-77ed-b883-57430f070518" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/FAIRVALUEMEASUREMENTSRecurringBasisDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#FAIRVALUEMEASUREMENTSRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/FAIRVALUEMEASUREMENTSRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7910-b047-29b7cdb5886a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7811-995a-3e6db909466c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7910-b047-29b7cdb5886a" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7811-995a-3e6db909466c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019ce8ce-fe07-7c8a-922b-331a7ebc2855" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7811-995a-3e6db909466c" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019ce8ce-fe07-7c8a-922b-331a7ebc2855" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019ce8ce-fe07-7c8a-922b-331a7ebc2855_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019ce8ce-fe07-7c8a-922b-331a7ebc2855" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019ce8ce-fe07-7c8a-922b-331a7ebc2855_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019ce8ce-fe07-77bc-9d21-9873d1784799" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019ce8ce-fe07-7c8a-922b-331a7ebc2855" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019ce8ce-fe07-77bc-9d21-9873d1784799" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019ce8ce-fe07-7793-93c2-bb0dccc888e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019ce8ce-fe07-77bc-9d21-9873d1784799" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019ce8ce-fe07-7793-93c2-bb0dccc888e7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-744d-97cd-ef88ceb36d69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7811-995a-3e6db909466c" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-744d-97cd-ef88ceb36d69" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-744d-97cd-ef88ceb36d69_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-744d-97cd-ef88ceb36d69" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-744d-97cd-ef88ceb36d69_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7c8b-a402-85e83d4d60bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-744d-97cd-ef88ceb36d69" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7c8b-a402-85e83d4d60bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019ce8ce-fe07-7f6c-95fe-b5e400022912" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7c8b-a402-85e83d4d60bf" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019ce8ce-fe07-7f6c-95fe-b5e400022912" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019ce8ce-fe07-73f5-830b-b0f52398bdd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7c8b-a402-85e83d4d60bf" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019ce8ce-fe07-73f5-830b-b0f52398bdd6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019ce8ce-fe07-7a6f-ab8c-e831cb0f9e2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7c8b-a402-85e83d4d60bf" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019ce8ce-fe07-7a6f-ab8c-e831cb0f9e2c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe07-7ea3-a9b3-d42daeab29da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7811-995a-3e6db909466c" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe07-7ea3-a9b3-d42daeab29da" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe07-7ea3-a9b3-d42daeab29da_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe07-7ea3-a9b3-d42daeab29da" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe07-7ea3-a9b3-d42daeab29da_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe07-7a65-9b50-11e8f0499211" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019ce8ce-fe07-7ea3-a9b3-d42daeab29da" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe07-7a65-9b50-11e8f0499211" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MutualFundMember_019ce8ce-fe07-7a8e-b44e-b1387de79ccb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MutualFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019ce8ce-fe07-7a65-9b50-11e8f0499211" xlink:to="loc_us-gaap_MutualFundMember_019ce8ce-fe07-7a8e-b44e-b1387de79ccb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradingSecurities_019ce8ce-fe07-7c1b-a54d-f04439dcac06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TradingSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7910-b047-29b7cdb5886a" xlink:to="loc_us-gaap_TradingSecurities_019ce8ce-fe07-7c1b-a54d-f04439dcac06" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/FAIRVALUEMEASUREMENTSNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#FAIRVALUEMEASUREMENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/FAIRVALUEMEASUREMENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7ac1-b975-980057d0520f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7d0b-860d-3fb1764a2b24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7ac1-b975-980057d0520f" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7d0b-860d-3fb1764a2b24" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-79b7-bab1-f07c07c22abe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019ce8ce-fe07-7d0b-860d-3fb1764a2b24" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-79b7-bab1-f07c07c22abe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-79b7-bab1-f07c07c22abe_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-79b7-bab1-f07c07c22abe" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-79b7-bab1-f07c07c22abe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7fa7-b28c-f9d9360ebe9c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019ce8ce-fe07-79b7-bab1-f07c07c22abe" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019ce8ce-fe07-7fa7-b28c-f9d9360ebe9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019ce8ce-fe07-7b86-93ad-8af11c9583ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7ac1-b975-980057d0520f" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019ce8ce-fe07-7b86-93ad-8af11c9583ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019ce8ce-fe07-710b-b60b-9cb2dcb63942" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019ce8ce-fe07-7ac1-b975-980057d0520f" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019ce8ce-fe07-710b-b60b-9cb2dcb63942" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/LEASESNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#LEASESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/LEASESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019ce8ce-fe07-7913-b7cb-0f1c3a65fbd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019ce8ce-fe07-74e8-a424-261e5e2b931a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019ce8ce-fe07-7913-b7cb-0f1c3a65fbd8" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019ce8ce-fe07-74e8-a424-261e5e2b931a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019ce8ce-fe07-7e93-81af-4a5f95eaf9ea" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019ce8ce-fe07-74e8-a424-261e5e2b931a" xlink:to="loc_srt_RangeAxis_019ce8ce-fe07-7e93-81af-4a5f95eaf9ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ce8ce-fe07-7e93-81af-4a5f95eaf9ea_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019ce8ce-fe07-7e93-81af-4a5f95eaf9ea" xlink:to="loc_srt_RangeMember_019ce8ce-fe07-7e93-81af-4a5f95eaf9ea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ce8ce-fe07-7deb-b4b9-d19ee73a96e0" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019ce8ce-fe07-7e93-81af-4a5f95eaf9ea" xlink:to="loc_srt_RangeMember_019ce8ce-fe07-7deb-b4b9-d19ee73a96e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019ce8ce-fe07-7c9d-a9cc-6972896cd191" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ce8ce-fe07-7deb-b4b9-d19ee73a96e0" xlink:to="loc_srt_MinimumMember_019ce8ce-fe07-7c9d-a9cc-6972896cd191" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019ce8ce-fe07-7ee2-a224-a6d24c42d046" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ce8ce-fe07-7deb-b4b9-d19ee73a96e0" xlink:to="loc_srt_MaximumMember_019ce8ce-fe07-7ee2-a224-a6d24c42d046" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019ce8ce-fe07-7430-b168-0a9283232357" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019ce8ce-fe07-7913-b7cb-0f1c3a65fbd8" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019ce8ce-fe07-7430-b168-0a9283232357" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019ce8ce-fe07-757d-89e2-039c154180e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019ce8ce-fe07-7913-b7cb-0f1c3a65fbd8" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019ce8ce-fe07-757d-89e2-039c154180e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019ce8ce-fe07-7ad9-9a38-f8370d394cde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019ce8ce-fe07-7913-b7cb-0f1c3a65fbd8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019ce8ce-fe07-7ad9-9a38-f8370d394cde" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_019ce8ce-fe07-7eed-809a-7f1ba60cec51" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019ce8ce-fe07-7913-b7cb-0f1c3a65fbd8" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_019ce8ce-fe07-7eed-809a-7f1ba60cec51" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/PROPERTYANDEQUIPMENTDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#PROPERTYANDEQUIPMENTDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/PROPERTYANDEQUIPMENTDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019ce8ce-fe07-7807-bc2c-d81e57a968b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019ce8ce-fe07-7f93-8670-0b2df41ea7db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019ce8ce-fe07-7807-bc2c-d81e57a968b4" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019ce8ce-fe07-7f93-8670-0b2df41ea7db" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe07-700a-ad3f-05d76ee07cb3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019ce8ce-fe07-7f93-8670-0b2df41ea7db" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe07-700a-ad3f-05d76ee07cb3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-700a-ad3f-05d76ee07cb3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe07-700a-ad3f-05d76ee07cb3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-700a-ad3f-05d76ee07cb3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019ce8ce-fe07-700a-ad3f-05d76ee07cb3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_019ce8ce-fe07-7c35-bff7-707cb13e155a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_LandMember_019ce8ce-fe07-7c35-bff7-707cb13e155a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_019ce8ce-fe07-7292-8dce-478b039e2879" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_019ce8ce-fe07-7292-8dce-478b039e2879" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OfficeEquipmentMember_019ce8ce-fe07-7946-a6d1-e91ffad2f3db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OfficeEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_OfficeEquipmentMember_019ce8ce-fe07-7946-a6d1-e91ffad2f3db" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransportationEquipmentMember_019ce8ce-fe07-7a9d-acaa-08b15281d4d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransportationEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_TransportationEquipmentMember_019ce8ce-fe07-7a9d-acaa-08b15281d4d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_019ce8ce-fe07-7fdd-acdb-9610cdb599f7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_019ce8ce-fe07-7fdd-acdb-9610cdb599f7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_019ce8ce-fe07-7223-b947-3a3092f47aa8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_019ce8ce-fe07-7223-b947-3a3092f47aa8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ShippingAndReceivingEquipmentMember_019ce8ce-fe07-7a5e-9ed0-8782c19cf3d0" xlink:href="bke-20260131.xsd#bke_ShippingAndReceivingEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_bke_ShippingAndReceivingEquipmentMember_019ce8ce-fe07-7a5e-9ed0-8782c19cf3d0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_019ce8ce-fe07-788e-839e-be51be65a554" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019ce8ce-fe07-7d73-b963-067687fee7ce" xlink:to="loc_us-gaap_ConstructionInProgressMember_019ce8ce-fe07-788e-839e-be51be65a554" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019ce8ce-fe07-70aa-97ec-7932b4be812e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019ce8ce-fe07-7807-bc2c-d81e57a968b4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019ce8ce-fe07-70aa-97ec-7932b4be812e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/FINANCINGARRANGEMENTSNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#FINANCINGARRANGEMENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/FINANCINGARRANGEMENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019ce8ce-fe07-7387-8245-cce5930debca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019ce8ce-fe07-7387-8245-cce5930debca" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019ce8ce-fe07-7b69-9121-e3daa2632a79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019ce8ce-fe07-7387-8245-cce5930debca" xlink:to="loc_us-gaap_CreditFacilityAxis_019ce8ce-fe07-7b69-9121-e3daa2632a79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019ce8ce-fe07-7b69-9121-e3daa2632a79_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019ce8ce-fe07-7b69-9121-e3daa2632a79" xlink:to="loc_us-gaap_CreditFacilityDomain_019ce8ce-fe07-7b69-9121-e3daa2632a79_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019ce8ce-fe07-73cc-af09-21f47b947d6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019ce8ce-fe07-7b69-9121-e3daa2632a79" xlink:to="loc_us-gaap_CreditFacilityDomain_019ce8ce-fe07-73cc-af09-21f47b947d6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019ce8ce-fe07-7b35-bc83-c528d5afb446" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019ce8ce-fe07-7b35-bc83-c528d5afb446" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityExpirationDate1_019ce8ce-fe07-7593-9163-645012310fd2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityExpirationDate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:to="loc_us-gaap_LineOfCreditFacilityExpirationDate1_019ce8ce-fe07-7593-9163-645012310fd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_PortionOfLineOfCreditForLetterOfCredit_019ce8ce-fe07-7156-920f-e494a3bba2c2" xlink:href="bke-20260131.xsd#bke_PortionOfLineOfCreditForLetterOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:to="loc_bke_PortionOfLineOfCreditForLetterOfCredit_019ce8ce-fe07-7156-920f-e494a3bba2c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateDescription_019ce8ce-fe07-7be2-b608-7898b1784c4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityInterestRateDescription"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateDescription_019ce8ce-fe07-7be2-b608-7898b1784c4b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_019ce8ce-fe07-785f-a918-a57eeb0c4779" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019ce8ce-fe07-772d-8934-8513e9472832" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_019ce8ce-fe07-785f-a918-a57eeb0c4779" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/INCOMETAXESNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#INCOMETAXESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/INCOMETAXESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bke_IncomeTaxesLineItems_019ce8ce-fe07-7794-94af-915503f9a58d" xlink:href="bke-20260131.xsd#bke_IncomeTaxesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_IncomeTaxesTable_019ce8ce-fe07-71d7-aa36-d2743d04c4ba" xlink:href="bke-20260131.xsd#bke_IncomeTaxesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_bke_IncomeTaxesLineItems_019ce8ce-fe07-7794-94af-915503f9a58d" xlink:to="loc_bke_IncomeTaxesTable_019ce8ce-fe07-71d7-aa36-d2743d04c4ba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_019ce8ce-fe07-7bb4-9528-ca3c069030e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_IncomeTaxesTable_019ce8ce-fe07-71d7-aa36-d2743d04c4ba" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_019ce8ce-fe07-7bb4-9528-ca3c069030e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_019ce8ce-fe07-7bb4-9528-ca3c069030e3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_019ce8ce-fe07-7bb4-9528-ca3c069030e3" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_019ce8ce-fe07-7bb4-9528-ca3c069030e3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_019ce8ce-fe07-758a-8388-534da362babf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_019ce8ce-fe07-7bb4-9528-ca3c069030e3" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_019ce8ce-fe07-758a-8388-534da362babf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_019ce8ce-fe07-7d0e-ae43-d7b6296de2d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_019ce8ce-fe07-758a-8388-534da362babf" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_019ce8ce-fe07-7d0e-ae43-d7b6296de2d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019ce8ce-fe07-7dae-9811-8419d88109be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_IncomeTaxesTable_019ce8ce-fe07-71d7-aa36-d2743d04c4ba" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019ce8ce-fe07-7dae-9811-8419d88109be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019ce8ce-fe07-7dae-9811-8419d88109be_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019ce8ce-fe07-7dae-9811-8419d88109be" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019ce8ce-fe07-7dae-9811-8419d88109be_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019ce8ce-fe07-78b9-a724-f011d71f8ca3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019ce8ce-fe07-7dae-9811-8419d88109be" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019ce8ce-fe07-78b9-a724-f011d71f8ca3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InternalRevenueServiceIRSMember_019ce8ce-fe07-791b-b490-d9e0c3a54ab5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InternalRevenueServiceIRSMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019ce8ce-fe07-78b9-a724-f011d71f8ca3" xlink:to="loc_us-gaap_InternalRevenueServiceIRSMember_019ce8ce-fe07-791b-b490-d9e0c3a54ab5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_019ce8ce-fe07-7804-b005-f2b790e397b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StateAndLocalJurisdictionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019ce8ce-fe07-78b9-a724-f011d71f8ca3" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_019ce8ce-fe07-7804-b005-f2b790e397b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019ce8ce-fe07-7ba6-acc4-904292de3697" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_IncomeTaxesTable_019ce8ce-fe07-71d7-aa36-d2743d04c4ba" xlink:to="loc_srt_RangeAxis_019ce8ce-fe07-7ba6-acc4-904292de3697" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ce8ce-fe07-7ba6-acc4-904292de3697_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019ce8ce-fe07-7ba6-acc4-904292de3697" xlink:to="loc_srt_RangeMember_019ce8ce-fe07-7ba6-acc4-904292de3697_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019ce8ce-fe07-7c88-a022-50044e59eb69" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019ce8ce-fe07-7ba6-acc4-904292de3697" xlink:to="loc_srt_RangeMember_019ce8ce-fe07-7c88-a022-50044e59eb69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019ce8ce-fe07-795e-af85-14a6636c92c5" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ce8ce-fe07-7c88-a022-50044e59eb69" xlink:to="loc_srt_MinimumMember_019ce8ce-fe07-795e-af85-14a6636c92c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019ce8ce-fe07-76eb-a6fb-ce61b4ed56eb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019ce8ce-fe07-7c88-a022-50044e59eb69" xlink:to="loc_srt_MaximumMember_019ce8ce-fe07-76eb-a6fb-ce61b4ed56eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_019ce8ce-fe07-742d-b439-7f802625de94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_IncomeTaxesLineItems_019ce8ce-fe07-7794-94af-915503f9a58d" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_019ce8ce-fe07-742d-b439-7f802625de94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OpenTaxYear_019ce8ce-fe07-7dd0-a7a3-2df6ae52e83b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OpenTaxYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_IncomeTaxesLineItems_019ce8ce-fe07-7794-94af-915503f9a58d" xlink:to="loc_us-gaap_OpenTaxYear_019ce8ce-fe07-7dd0-a7a3-2df6ae52e83b" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/RELATEDPARTYTRANSACTIONSNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#RELATEDPARTYTRANSACTIONSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/RELATEDPARTYTRANSACTIONSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019ce8ce-fe07-746a-b02a-977b46781c96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019ce8ce-fe07-78c1-b1df-15e84d7e1bd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019ce8ce-fe07-746a-b02a-977b46781c96" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019ce8ce-fe07-78c1-b1df-15e84d7e1bd9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019ce8ce-fe07-7d11-8aea-ba7ffa73fb50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019ce8ce-fe07-78c1-b1df-15e84d7e1bd9" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019ce8ce-fe07-7d11-8aea-ba7ffa73fb50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019ce8ce-fe07-7d11-8aea-ba7ffa73fb50_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019ce8ce-fe07-7d11-8aea-ba7ffa73fb50" xlink:to="loc_us-gaap_RelatedPartyDomain_019ce8ce-fe07-7d11-8aea-ba7ffa73fb50_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019ce8ce-fe07-77be-9025-057416db51cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019ce8ce-fe07-7d11-8aea-ba7ffa73fb50" xlink:to="loc_us-gaap_RelatedPartyDomain_019ce8ce-fe07-77be-9025-057416db51cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DebtorLifeInsuranceTrustFundControlledByEntityChairmanMember_019ce8ce-fe07-7454-b1ad-e0f0c1ae01d5" xlink:href="bke-20260131.xsd#bke_DebtorLifeInsuranceTrustFundControlledByEntityChairmanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019ce8ce-fe07-77be-9025-057416db51cc" xlink:to="loc_bke_DebtorLifeInsuranceTrustFundControlledByEntityChairmanMember_019ce8ce-fe07-7454-b1ad-e0f0c1ae01d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019ce8ce-fe07-7ee0-ae27-61290c6a8001" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019ce8ce-fe07-78c1-b1df-15e84d7e1bd9" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019ce8ce-fe07-7ee0-ae27-61290c6a8001" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019ce8ce-fe07-7ee0-ae27-61290c6a8001_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019ce8ce-fe07-7ee0-ae27-61290c6a8001" xlink:to="loc_us-gaap_ReceivableTypeDomain_019ce8ce-fe07-7ee0-ae27-61290c6a8001_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019ce8ce-fe07-73f6-8542-e26f8346491f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019ce8ce-fe07-7ee0-ae27-61290c6a8001" xlink:to="loc_us-gaap_ReceivableTypeDomain_019ce8ce-fe07-73f6-8542-e26f8346491f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableMember_019ce8ce-fe07-714b-9103-317f251405e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NotesReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019ce8ce-fe07-73f6-8542-e26f8346491f" xlink:to="loc_us-gaap_NotesReceivableMember_019ce8ce-fe07-714b-9103-317f251405e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivables_019ce8ce-fe07-76aa-8ee8-1e5c9dea8fa3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019ce8ce-fe07-746a-b02a-977b46781c96" xlink:to="loc_us-gaap_OtherReceivables_019ce8ce-fe07-76aa-8ee8-1e5c9dea8fa3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_FrequencyOfRelatedPartyPayments_019ce8ce-fe07-77f8-8e90-24adf06e4632" xlink:href="bke-20260131.xsd#bke_FrequencyOfRelatedPartyPayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019ce8ce-fe07-746a-b02a-977b46781c96" xlink:to="loc_bke_FrequencyOfRelatedPartyPayments_019ce8ce-fe07-77f8-8e90-24adf06e4632" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_RelatedPartyAnnualPaymentsForInsurancePremiums_019ce8ce-fe07-7cc5-8de3-c06c2694c0f7" xlink:href="bke-20260131.xsd#bke_RelatedPartyAnnualPaymentsForInsurancePremiums"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019ce8ce-fe07-746a-b02a-977b46781c96" xlink:to="loc_bke_RelatedPartyAnnualPaymentsForInsurancePremiums_019ce8ce-fe07-7cc5-8de3-c06c2694c0f7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionRate_019ce8ce-fe07-757a-b355-a5c3cee0fac2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RelatedPartyTransactionRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019ce8ce-fe07-746a-b02a-977b46781c96" xlink:to="loc_us-gaap_RelatedPartyTransactionRate_019ce8ce-fe07-757a-b355-a5c3cee0fac2" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/EMPLOYEEBENEFITSDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#EMPLOYEEBENEFITSDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/EMPLOYEEBENEFITSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_bke_ScheduleOfDeferredCompensationPlansLineItems_019ce8ce-fe07-7dc7-97a6-24f7e2069c30" xlink:href="bke-20260131.xsd#bke_ScheduleOfDeferredCompensationPlansLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ScheduleOfDeferredCompensationPlansTable_019ce8ce-fe07-7d1e-87ef-0f09a4b8f56f" xlink:href="bke-20260131.xsd#bke_ScheduleOfDeferredCompensationPlansTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_bke_ScheduleOfDeferredCompensationPlansLineItems_019ce8ce-fe07-7dc7-97a6-24f7e2069c30" xlink:to="loc_bke_ScheduleOfDeferredCompensationPlansTable_019ce8ce-fe07-7d1e-87ef-0f09a4b8f56f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DeferredCompensationArrangementByPlanAxis_019ce8ce-fe07-734e-9374-185b70473662" xlink:href="bke-20260131.xsd#bke_DeferredCompensationArrangementByPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_bke_ScheduleOfDeferredCompensationPlansTable_019ce8ce-fe07-7d1e-87ef-0f09a4b8f56f" xlink:to="loc_bke_DeferredCompensationArrangementByPlanAxis_019ce8ce-fe07-734e-9374-185b70473662" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_TypeOfDeferredCompensationPlanDomain_019ce8ce-fe07-734e-9374-185b70473662_default" xlink:href="bke-20260131.xsd#bke_TypeOfDeferredCompensationPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_bke_DeferredCompensationArrangementByPlanAxis_019ce8ce-fe07-734e-9374-185b70473662" xlink:to="loc_bke_TypeOfDeferredCompensationPlanDomain_019ce8ce-fe07-734e-9374-185b70473662_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_TypeOfDeferredCompensationPlanDomain_019ce8ce-fe07-7454-803c-2cf44f55d6c2" xlink:href="bke-20260131.xsd#bke_TypeOfDeferredCompensationPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_bke_DeferredCompensationArrangementByPlanAxis_019ce8ce-fe07-734e-9374-185b70473662" xlink:to="loc_bke_TypeOfDeferredCompensationPlanDomain_019ce8ce-fe07-7454-803c-2cf44f55d6c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ProfitSharingPlan401KMember_019ce8ce-fe07-793f-af59-b5d10e14cf70" xlink:href="bke-20260131.xsd#bke_ProfitSharingPlan401KMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_TypeOfDeferredCompensationPlanDomain_019ce8ce-fe07-7454-803c-2cf44f55d6c2" xlink:to="loc_bke_ProfitSharingPlan401KMember_019ce8ce-fe07-793f-af59-b5d10e14cf70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DeferredCompensationPlanExecutivesMember_019ce8ce-fe07-7313-bad6-68586807bbbb" xlink:href="bke-20260131.xsd#bke_DeferredCompensationPlanExecutivesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_TypeOfDeferredCompensationPlanDomain_019ce8ce-fe07-7454-803c-2cf44f55d6c2" xlink:to="loc_bke_DeferredCompensationPlanExecutivesMember_019ce8ce-fe07-7313-bad6-68586807bbbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DeferredCompensationArrangementDescription_019ce8ce-fe07-7a7f-960b-6d84f8f4cc04" xlink:href="bke-20260131.xsd#bke_DeferredCompensationArrangementDescription"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_ScheduleOfDeferredCompensationPlansLineItems_019ce8ce-fe07-7dc7-97a6-24f7e2069c30" xlink:to="loc_bke_DeferredCompensationArrangementDescription_019ce8ce-fe07-7a7f-960b-6d84f8f4cc04" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DeferredCompensationArrangementCompensationExpense_019ce8ce-fe07-7736-a404-42ed45bedc2b" xlink:href="bke-20260131.xsd#bke_DeferredCompensationArrangementCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_ScheduleOfDeferredCompensationPlansLineItems_019ce8ce-fe07-7dc7-97a6-24f7e2069c30" xlink:to="loc_bke_DeferredCompensationArrangementCompensationExpense_019ce8ce-fe07-7736-a404-42ed45bedc2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DeferredCompensationPlanAnnualMaximumPercentageLimitationBasedOnParticipantContribution_019ce8ce-fe07-7a6d-a506-61cb3267612e" xlink:href="bke-20260131.xsd#bke_DeferredCompensationPlanAnnualMaximumPercentageLimitationBasedOnParticipantContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_ScheduleOfDeferredCompensationPlansLineItems_019ce8ce-fe07-7dc7-97a6-24f7e2069c30" xlink:to="loc_bke_DeferredCompensationPlanAnnualMaximumPercentageLimitationBasedOnParticipantContribution_019ce8ce-fe07-7a6d-a506-61cb3267612e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DeferredCompensationArrangementEmployerContribution_019ce8ce-fe07-7f03-a8ac-8ace38e0e6cf" xlink:href="bke-20260131.xsd#bke_DeferredCompensationArrangementEmployerContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bke_ScheduleOfDeferredCompensationPlansLineItems_019ce8ce-fe07-7dc7-97a6-24f7e2069c30" xlink:to="loc_bke_DeferredCompensationArrangementEmployerContribution_019ce8ce-fe07-7f03-a8ac-8ace38e0e6cf" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/STOCKBASEDCOMPENSATIONNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#STOCKBASEDCOMPENSATIONNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/STOCKBASEDCOMPENSATIONNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-75d4-869b-2a6941adb226" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-75d4-869b-2a6941adb226" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_019ce8ce-fe07-793e-8f14-16340075bffc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-75d4-869b-2a6941adb226" xlink:to="loc_us-gaap_VestingAxis_019ce8ce-fe07-793e-8f14-16340075bffc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_019ce8ce-fe07-793e-8f14-16340075bffc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_019ce8ce-fe07-793e-8f14-16340075bffc" xlink:to="loc_us-gaap_VestingDomain_019ce8ce-fe07-793e-8f14-16340075bffc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_019ce8ce-fe07-781e-bb80-fe00eb104549" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_019ce8ce-fe07-793e-8f14-16340075bffc" xlink:to="loc_us-gaap_VestingDomain_019ce8ce-fe07-781e-bb80-fe00eb104549" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_PerformanceBasedGrantMember_019ce8ce-fe07-70d0-a253-5b0ee83dfcda" xlink:href="bke-20260131.xsd#bke_PerformanceBasedGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_019ce8ce-fe07-781e-bb80-fe00eb104549" xlink:to="loc_bke_PerformanceBasedGrantMember_019ce8ce-fe07-70d0-a253-5b0ee83dfcda" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_NonPerformanceBasedGrantMember_019ce8ce-fe07-7ac2-a6b2-6b9d07e18dca" xlink:href="bke-20260131.xsd#bke_NonPerformanceBasedGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_019ce8ce-fe07-781e-bb80-fe00eb104549" xlink:to="loc_bke_NonPerformanceBasedGrantMember_019ce8ce-fe07-7ac2-a6b2-6b9d07e18dca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7187-b2f4-6f2abbb1392f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-75d4-869b-2a6941adb226" xlink:to="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7187-b2f4-6f2abbb1392f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7187-b2f4-6f2abbb1392f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7187-b2f4-6f2abbb1392f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7187-b2f4-6f2abbb1392f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7f17-bc37-362c8f7fcc50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7187-b2f4-6f2abbb1392f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7f17-bc37-362c8f7fcc50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019ce8ce-fe07-7d10-8387-1451bba0dfae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7f17-bc37-362c8f7fcc50" xlink:to="loc_us-gaap_RestrictedStockMember_019ce8ce-fe07-7d10-8387-1451bba0dfae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_019ce8ce-fe07-766c-ae95-f148230fb617" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-75d4-869b-2a6941adb226" xlink:to="loc_srt_TitleOfIndividualAxis_019ce8ce-fe07-766c-ae95-f148230fb617" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019ce8ce-fe07-766c-ae95-f148230fb617_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_019ce8ce-fe07-766c-ae95-f148230fb617" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019ce8ce-fe07-766c-ae95-f148230fb617_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019ce8ce-fe07-7a2b-ab62-c256ac3b2d53" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_019ce8ce-fe07-766c-ae95-f148230fb617" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019ce8ce-fe07-7a2b-ab62-c256ac3b2d53" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_019d2508-dd9c-78ce-96cc-3becefa4397a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019ce8ce-fe07-7a2b-ab62-c256ac3b2d53" xlink:to="loc_srt_ExecutiveOfficerMember_019d2508-dd9c-78ce-96cc-3becefa4397a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019ce8ce-fe07-7f49-8e11-d5d7dfd9b246" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-75d4-869b-2a6941adb226" xlink:to="loc_us-gaap_PlanNameAxis_019ce8ce-fe07-7f49-8e11-d5d7dfd9b246" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-7f49-8e11-d5d7dfd9b246_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019ce8ce-fe07-7f49-8e11-d5d7dfd9b246" xlink:to="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-7f49-8e11-d5d7dfd9b246_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-778a-8d94-d3d1f0c9af38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019ce8ce-fe07-7f49-8e11-d5d7dfd9b246" xlink:to="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-778a-8d94-d3d1f0c9af38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_RestrictedStockPlan2005Member_019ce8ce-fe07-7383-9b39-c5cbfa93f5cb" xlink:href="bke-20260131.xsd#bke_RestrictedStockPlan2005Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-778a-8d94-d3d1f0c9af38" xlink:to="loc_bke_RestrictedStockPlan2005Member_019ce8ce-fe07-7383-9b39-c5cbfa93f5cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DirectorRestrictedStockPlan2008Member_019ce8ce-fe07-7655-9700-c439be3fd9a3" xlink:href="bke-20260131.xsd#bke_DirectorRestrictedStockPlan2008Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-778a-8d94-d3d1f0c9af38" xlink:to="loc_bke_DirectorRestrictedStockPlan2008Member_019ce8ce-fe07-7655-9700-c439be3fd9a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_A2023EmployeeRestrictedStockPlanMember_019ce8ce-fe07-74a4-bc71-a892b8418cb2" xlink:href="bke-20260131.xsd#bke_A2023EmployeeRestrictedStockPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-778a-8d94-d3d1f0c9af38" xlink:to="loc_bke_A2023EmployeeRestrictedStockPlanMember_019ce8ce-fe07-74a4-bc71-a892b8418cb2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_A2024DirectorRestrictedStockPlanMember_019d069c-e78e-70cc-a508-a25ea3f84b46" xlink:href="bke-20260131.xsd#bke_A2024DirectorRestrictedStockPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019ce8ce-fe07-778a-8d94-d3d1f0c9af38" xlink:to="loc_bke_A2024DirectorRestrictedStockPlanMember_019d069c-e78e-70cc-a508-a25ea3f84b46" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019ce8ce-fe07-7c75-aa31-f0b0d875ab3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019ce8ce-fe07-7c75-aa31-f0b0d875ab3a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_019ce8ce-fe07-7c1f-9c72-2d31ac0f3b69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_019ce8ce-fe07-7c1f-9c72-2d31ac0f3b69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019ce8ce-fe07-7409-93fe-7b3cdf13818f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019ce8ce-fe07-7409-93fe-7b3cdf13818f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodPercentage_019ce8ce-fe07-7626-8352-7870261fda9e" xlink:href="bke-20260131.xsd#bke_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_bke_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodPercentage_019ce8ce-fe07-7626-8352-7870261fda9e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019ce8ce-fe07-72a3-b6cf-ab91cb52a302" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019ce8ce-fe07-72a3-b6cf-ab91cb52a302" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019ce8ce-fe07-7c18-9b9b-0d1cb45c85a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019ce8ce-fe07-7c18-9b9b-0d1cb45c85a3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_019ce8ce-fe07-766d-9663-4eb1326db8a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_019ce8ce-fe07-766d-9663-4eb1326db8a9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodTranche_019d069c-e78e-72da-963a-f0fe7e0abf72" xlink:href="bke-20260131.xsd#bke_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodTranche"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-715f-a650-465caca2e628" xlink:to="loc_bke_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodTranche_019d069c-e78e-72da-963a-f0fe7e0abf72" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/STOCKBASEDCOMPENSATIONCompensationExpensesDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#STOCKBASEDCOMPENSATIONCompensationExpensesDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/STOCKBASEDCOMPENSATIONCompensationExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-756e-9764-1e6b5d98cc44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-704e-a72c-6e4dc87d40a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-756e-9764-1e6b5d98cc44" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-704e-a72c-6e4dc87d40a4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7a74-93e5-a128f80731b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-704e-a72c-6e4dc87d40a4" xlink:to="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7a74-93e5-a128f80731b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7a74-93e5-a128f80731b7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7a74-93e5-a128f80731b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7a74-93e5-a128f80731b7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7d6e-a56f-8b845819a914" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-7a74-93e5-a128f80731b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7d6e-a56f-8b845819a914" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019ce8ce-fe07-762b-b8ad-e20969c81fc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7d6e-a56f-8b845819a914" xlink:to="loc_us-gaap_RestrictedStockMember_019ce8ce-fe07-762b-b8ad-e20969c81fc9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019ce8ce-fe07-7d57-b331-434ffb26f11b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-756e-9764-1e6b5d98cc44" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019ce8ce-fe07-7d57-b331-434ffb26f11b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_019ce8ce-fe07-76a5-84ad-bda45b5f5f7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-756e-9764-1e6b5d98cc44" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_019ce8ce-fe07-76a5-84ad-bda45b5f5f7c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/STOCKBASEDCOMPENSATIONNonvestedSharesDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#STOCKBASEDCOMPENSATIONNonvestedSharesDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/STOCKBASEDCOMPENSATIONNonvestedSharesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-7e1c-a7b9-a9baded3d7cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-7666-8886-3ec626d697d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-7e1c-a7b9-a9baded3d7cc" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-7666-8886-3ec626d697d6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-78bb-8f02-1b06ab3020a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019ce8ce-fe07-7666-8886-3ec626d697d6" xlink:to="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-78bb-8f02-1b06ab3020a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-78bb-8f02-1b06ab3020a4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-78bb-8f02-1b06ab3020a4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-78bb-8f02-1b06ab3020a4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7457-bb57-e424963a5659" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019ce8ce-fe07-78bb-8f02-1b06ab3020a4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7457-bb57-e424963a5659" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019ce8ce-fe07-714f-a2a9-48165a6ea4d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019ce8ce-fe07-7457-bb57-e424963a5659" xlink:to="loc_us-gaap_RestrictedStockMember_019ce8ce-fe07-714f-a2a9-48165a6ea4d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ce8ce-fe07-7530-ab35-96518716adba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-7e1c-a7b9-a9baded3d7cc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ce8ce-fe07-7530-ab35-96518716adba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ce8ce-fe07-7aa8-b075-04d558cfae02" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ce8ce-fe07-7530-ab35-96518716adba" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ce8ce-fe07-7aa8-b075-04d558cfae02" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019ce8ce-fe07-77fd-9a7d-d5e46fb51465" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ce8ce-fe07-7530-ab35-96518716adba" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019ce8ce-fe07-77fd-9a7d-d5e46fb51465" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019ce8ce-fe07-7362-8f29-2f3f46104516" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ce8ce-fe07-7530-ab35-96518716adba" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019ce8ce-fe07-7362-8f29-2f3f46104516" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019ce8ce-fe07-7dde-8218-4e16710c63d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019ce8ce-fe07-7530-ab35-96518716adba" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019ce8ce-fe07-7dde-8218-4e16710c63d6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019ce8ce-fe07-72a1-afc6-9f5bcf3b94ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ce8ce-fe07-7951-b878-34306a89e26b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019ce8ce-fe07-7e1c-a7b9-a9baded3d7cc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ce8ce-fe07-7951-b878-34306a89e26b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ce8ce-fe07-7537-8a6c-2d1013c755cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ce8ce-fe07-7951-b878-34306a89e26b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ce8ce-fe07-7537-8a6c-2d1013c755cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019ce8ce-fe07-7515-943d-ba229c83196d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ce8ce-fe07-7951-b878-34306a89e26b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019ce8ce-fe07-7515-943d-ba229c83196d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019ce8ce-fe07-701b-9f88-97da75229fd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ce8ce-fe07-7951-b878-34306a89e26b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019ce8ce-fe07-701b-9f88-97da75229fd8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019ce8ce-fe07-7f20-9a1b-953691c5fa10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019ce8ce-fe07-7951-b878-34306a89e26b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019ce8ce-fe07-7f20-9a1b-953691c5fa10" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019ce8ce-fe07-706b-a0e8-2f6767a0041a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/REVENUESNarrativeDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#REVENUESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/REVENUESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductInformationLineItems_019ce8ce-fe07-75a4-8691-239916d221ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019ce8ce-fe07-73fe-852a-25dcbe542ce5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ProductInformationLineItems_019ce8ce-fe07-75a4-8691-239916d221ab" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019ce8ce-fe07-73fe-852a-25dcbe542ce5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019ce8ce-fe07-71b8-8999-39a618c3ba95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019ce8ce-fe07-73fe-852a-25dcbe542ce5" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019ce8ce-fe07-71b8-8999-39a618c3ba95" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019ce8ce-fe07-71b8-8999-39a618c3ba95_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019ce8ce-fe07-71b8-8999-39a618c3ba95" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019ce8ce-fe07-71b8-8999-39a618c3ba95_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019ce8ce-fe07-7088-849f-11ff3f490a96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019ce8ce-fe07-71b8-8999-39a618c3ba95" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019ce8ce-fe07-7088-849f-11ff3f490a96" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019ce8ce-fe07-7253-8203-5e55b0ceb0e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019ce8ce-fe07-7088-849f-11ff3f490a96" xlink:to="loc_us-gaap_SalesRevenueNetMember_019ce8ce-fe07-7253-8203-5e55b0ceb0e5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019ce8ce-fe07-71bf-a1a9-a3ac20fbae6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019ce8ce-fe07-73fe-852a-25dcbe542ce5" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019ce8ce-fe07-71bf-a1a9-a3ac20fbae6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019ce8ce-fe07-71bf-a1a9-a3ac20fbae6c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019ce8ce-fe07-71bf-a1a9-a3ac20fbae6c" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019ce8ce-fe07-71bf-a1a9-a3ac20fbae6c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019ce8ce-fe07-737e-a597-7cd3579b7f1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019ce8ce-fe07-71bf-a1a9-a3ac20fbae6c" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019ce8ce-fe07-737e-a597-7cd3579b7f1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductConcentrationRiskMember_019ce8ce-fe07-7ea4-be31-d4dd4624f8ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019ce8ce-fe07-737e-a597-7cd3579b7f1c" xlink:to="loc_us-gaap_ProductConcentrationRiskMember_019ce8ce-fe07-7ea4-be31-d4dd4624f8ec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ce8ce-fe07-7d6d-838c-e7fcc4142127" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019ce8ce-fe07-73fe-852a-25dcbe542ce5" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ce8ce-fe07-7d6d-838c-e7fcc4142127" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ce8ce-fe07-7d6d-838c-e7fcc4142127_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ce8ce-fe07-7d6d-838c-e7fcc4142127" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ce8ce-fe07-7d6d-838c-e7fcc4142127_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ce8ce-fe07-7a2d-aab2-bed572758085" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019ce8ce-fe07-7d6d-838c-e7fcc4142127" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ce8ce-fe07-7a2d-aab2-bed572758085" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_OnlineRevenuesMember_019ce8ce-fe07-7436-a5b6-e21f32b5ba9e" xlink:href="bke-20260131.xsd#bke_OnlineRevenuesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019ce8ce-fe07-7a2d-aab2-bed572758085" xlink:to="loc_bke_OnlineRevenuesMember_019ce8ce-fe07-7436-a5b6-e21f32b5ba9e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019ce8ce-fe07-731d-8c0c-e2da4ff66ee7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductInformationLineItems_019ce8ce-fe07-75a4-8691-239916d221ab" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019ce8ce-fe07-731d-8c0c-e2da4ff66ee7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/REVENUESDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#REVENUESDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/REVENUESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductInformationLineItems_019ce8ce-fe07-7e83-942c-d3616a4f3019" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfProductInformationTable_019ce8ce-fe07-7e7e-8786-78f44e3571fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfProductInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ProductInformationLineItems_019ce8ce-fe07-7e83-942c-d3616a4f3019" xlink:to="loc_us-gaap_ScheduleOfProductInformationTable_019ce8ce-fe07-7e7e-8786-78f44e3571fd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019ce8ce-fe07-7fbf-b5cf-c5867fa8f9a8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfProductInformationTable_019ce8ce-fe07-7e7e-8786-78f44e3571fd" xlink:to="loc_srt_ProductOrServiceAxis_019ce8ce-fe07-7fbf-b5cf-c5867fa8f9a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7fbf-b5cf-c5867fa8f9a8_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019ce8ce-fe07-7fbf-b5cf-c5867fa8f9a8" xlink:to="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7fbf-b5cf-c5867fa8f9a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019ce8ce-fe07-7fbf-b5cf-c5867fa8f9a8" xlink:to="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_DenimMember_019ce8ce-fe07-7454-898e-4f45dd64b073" xlink:href="bke-20260131.xsd#bke_DenimMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_DenimMember_019ce8ce-fe07-7454-898e-4f45dd64b073" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_TopsAndSweatersMember_019ce8ce-fe07-7a9b-9e4e-06ef13b3757a" xlink:href="bke-20260131.xsd#bke_TopsAndSweatersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_TopsAndSweatersMember_019ce8ce-fe07-7a9b-9e4e-06ef13b3757a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_AccessoriesMember_019ce8ce-fe07-77ba-b815-0f7847b60368" xlink:href="bke-20260131.xsd#bke_AccessoriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_AccessoriesMember_019ce8ce-fe07-77ba-b815-0f7847b60368" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_FootwearMember_019ce8ce-fe07-7fba-957b-4338325f09ac" xlink:href="bke-20260131.xsd#bke_FootwearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_FootwearMember_019ce8ce-fe07-7fba-957b-4338325f09ac" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SportswearAndFashionMember_019ce8ce-fe07-74c2-9a65-5591095a7fab" xlink:href="bke-20260131.xsd#bke_SportswearAndFashionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_SportswearAndFashionMember_019ce8ce-fe07-74c2-9a65-5591095a7fab" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_OuterwearMember_019ce8ce-fe07-7609-aed6-a64e127d0461" xlink:href="bke-20260131.xsd#bke_OuterwearMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_OuterwearMember_019ce8ce-fe07-7609-aed6-a64e127d0461" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_CasualBottomsMember_019ce8ce-fe07-7436-b5c7-ef4eb66a9dc2" xlink:href="bke-20260131.xsd#bke_CasualBottomsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_CasualBottomsMember_019ce8ce-fe07-7436-b5c7-ef4eb66a9dc2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_KidsMember_019ce8ce-fe07-7997-b17e-4938e4639be3" xlink:href="bke-20260131.xsd#bke_KidsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019ce8ce-fe07-7782-b4a1-2dc1442658c8" xlink:to="loc_bke_KidsMember_019ce8ce-fe07-7997-b17e-4938e4639be3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_SalesRevenueNetPercentage_019ce8ce-fe07-755e-824e-f7042019d24d" xlink:href="bke-20260131.xsd#bke_SalesRevenueNetPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductInformationLineItems_019ce8ce-fe07-7e83-942c-d3616a4f3019" xlink:to="loc_bke_SalesRevenueNetPercentage_019ce8ce-fe07-755e-824e-f7042019d24d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/SEGMENTREPORTINGDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#SEGMENTREPORTINGDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/SEGMENTREPORTINGDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ce8ce-fe07-7858-8be2-cded9414696b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ce8ce-fe07-7858-8be2-cded9414696b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019ce8ce-fe07-71e3-95b1-ab5adf884cf4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019ce8ce-fe07-7858-8be2-cded9414696b" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019ce8ce-fe07-71e3-95b1-ab5adf884cf4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019ce8ce-fe07-71e3-95b1-ab5adf884cf4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019ce8ce-fe07-71e3-95b1-ab5adf884cf4" xlink:to="loc_us-gaap_SegmentDomain_019ce8ce-fe07-71e3-95b1-ab5adf884cf4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019ce8ce-fe07-7665-94ce-39b95335bf43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019ce8ce-fe07-71e3-95b1-ab5adf884cf4" xlink:to="loc_us-gaap_SegmentDomain_019ce8ce-fe07-7665-94ce-39b95335bf43" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_ReportableSegmentMember_019ce8ce-fe07-7b7c-9528-9e1710351cf9" xlink:href="bke-20260131.xsd#bke_ReportableSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019ce8ce-fe07-7665-94ce-39b95335bf43" xlink:to="loc_bke_ReportableSegmentMember_019ce8ce-fe07-7b7c-9528-9e1710351cf9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ce8ce-fe07-70a3-b8d6-220de6b64943" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019ce8ce-fe07-70a3-b8d6-220de6b64943" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_MerchandiseCostOfGoodsSold_019ce8ce-fe07-7ad0-a6bd-91a45119ae7e" xlink:href="bke-20260131.xsd#bke_MerchandiseCostOfGoodsSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_bke_MerchandiseCostOfGoodsSold_019ce8ce-fe07-7ad0-a6bd-91a45119ae7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_OtherCostOfGoodsSold_019ce8ce-fe07-78ea-a948-e2f042cfd823" xlink:href="bke-20260131.xsd#bke_OtherCostOfGoodsSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_bke_OtherCostOfGoodsSold_019ce8ce-fe07-78ea-a948-e2f042cfd823" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_PersonnelCosts_019ce8ce-fe07-71b1-a1bb-a39f61a7dbe4" xlink:href="bke-20260131.xsd#bke_PersonnelCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_bke_PersonnelCosts_019ce8ce-fe07-71b1-a1bb-a39f61a7dbe4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_OtherOperatingExpenses_019ce8ce-fe07-79b4-8649-8c98aea539f1" xlink:href="bke-20260131.xsd#bke_OtherOperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_bke_OtherOperatingExpenses_019ce8ce-fe07-79b4-8649-8c98aea539f1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019ce8ce-fe07-7ee8-88ea-8c67b4346c33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_us-gaap_OperatingIncomeLoss_019ce8ce-fe07-7ee8-88ea-8c67b4346c33" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_019ce8ce-fe07-7029-b8e8-b01079480e62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_019ce8ce-fe07-7029-b8e8-b01079480e62" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019ce8ce-fe07-757e-8d6b-b28bbb688b73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019ce8ce-fe07-757e-8d6b-b28bbb688b73" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019ce8ce-fe07-7def-97f0-014a3225b517" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019ce8ce-fe07-7397-80ee-d9e71c7e1571" xlink:to="loc_us-gaap_NetIncomeLoss_019ce8ce-fe07-7def-97f0-014a3225b517" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/SUBSEQUENTEVENTSDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#SUBSEQUENTEVENTSDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/SUBSEQUENTEVENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019d3098-1c41-7952-b099-ef0da9a39d5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019d3098-1c41-7fb4-8bab-134b41629e64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_019d3098-1c41-7952-b099-ef0da9a39d5b" xlink:to="loc_us-gaap_SubsequentEventTable_019d3098-1c41-7fb4-8bab-134b41629e64" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019d30a8-eb1b-7b4b-a720-fe8d9e64c21d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019d3098-1c41-7fb4-8bab-134b41629e64" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019d30a8-eb1b-7b4b-a720-fe8d9e64c21d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019d30a8-eb1b-7b4b-a720-fe8d9e64c21d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019d30a8-eb1b-7b4b-a720-fe8d9e64c21d" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019d30a8-eb1b-7b4b-a720-fe8d9e64c21d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019d30a8-eb1b-7b27-a8d0-6996ad07f613" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019d30a8-eb1b-7b4b-a720-fe8d9e64c21d" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019d30a8-eb1b-7b27-a8d0-6996ad07f613" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_019d30aa-b608-71a7-b90d-046c743f9494" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019d3098-1c41-7fb4-8bab-134b41629e64" xlink:to="loc_srt_LitigationCaseAxis_019d30aa-b608-71a7-b90d-046c743f9494" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019d30aa-b608-71a7-b90d-046c743f9494_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_019d30aa-b608-71a7-b90d-046c743f9494" xlink:to="loc_srt_LitigationCaseTypeDomain_019d30aa-b608-71a7-b90d-046c743f9494_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_019d30aa-b608-720e-92e2-7482084e5c17" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_019d30aa-b608-71a7-b90d-046c743f9494" xlink:to="loc_srt_LitigationCaseTypeDomain_019d30aa-b608-720e-92e2-7482084e5c17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bke_CreditCardInterchangeFeeLitigationMember_019d30ab-0359-7e91-94cf-bb3dcd1bc611" xlink:href="bke-20260131.xsd#bke_CreditCardInterchangeFeeLitigationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_019d30aa-b608-720e-92e2-7482084e5c17" xlink:to="loc_bke_CreditCardInterchangeFeeLitigationMember_019d30ab-0359-7e91-94cf-bb3dcd1bc611" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement_019d3098-1c41-774d-90dd-6ea309a12e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossRelatedToLitigationSettlement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019d3098-1c41-7952-b099-ef0da9a39d5b" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement_019d3098-1c41-774d-90dd-6ea309a12e0d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.buckle.com/role/SCHEDULEIIValuationandQualifyingAccountsDetails" xlink:type="simple" xlink:href="bke-20260131.xsd#SCHEDULEIIValuationandQualifyingAccountsDetails"/>
  <link:definitionLink xlink:role="http://www.buckle.com/role/SCHEDULEIIValuationandQualifyingAccountsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_ValuationAndQualifyingAccountsDisclosureLineItems_019ce8ce-fe07-7af0-a4a8-a5d4cbb3feaa" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ValuationAndQualifyingAccountsDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ValuationAndQualifyingAccountsDisclosureTable_019ce8ce-fe07-7f7c-8246-d1c73b76fffd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ValuationAndQualifyingAccountsDisclosureTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_ValuationAndQualifyingAccountsDisclosureLineItems_019ce8ce-fe07-7af0-a4a8-a5d4cbb3feaa" xlink:to="loc_srt_ValuationAndQualifyingAccountsDisclosureTable_019ce8ce-fe07-7f7c-8246-d1c73b76fffd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe07-79ed-8369-46d6436c2dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_ValuationAndQualifyingAccountsDisclosureTable_019ce8ce-fe07-7f7c-8246-d1c73b76fffd" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe07-79ed-8369-46d6436c2dc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe07-79ed-8369-46d6436c2dc9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe07-79ed-8369-46d6436c2dc9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe07-79ed-8369-46d6436c2dc9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe07-79f1-bc88-2cd46b916105" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019ce8ce-fe07-79ed-8369-46d6436c2dc9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe07-79f1-bc88-2cd46b916105" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForCreditLossMember_019ce8ce-fe07-7ba2-bb42-cbf2efdf3d3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForCreditLossMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe07-79f1-bc88-2cd46b916105" xlink:to="loc_us-gaap_AllowanceForCreditLossMember_019ce8ce-fe07-7ba2-bb42-cbf2efdf3d3c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesReturnsAndAllowancesMember_019ce8ce-fe07-7ba3-8d29-f0572d963103" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesReturnsAndAllowancesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_019ce8ce-fe07-79f1-bc88-2cd46b916105" xlink:to="loc_us-gaap_SalesReturnsAndAllowancesMember_019ce8ce-fe07-7ba3-8d29-f0572d963103" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019ce8ce-fe07-7671-91c0-d6d2da3925d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ValuationAndQualifyingAccountsDisclosureLineItems_019ce8ce-fe07-7af0-a4a8-a5d4cbb3feaa" xlink:to="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019ce8ce-fe07-7671-91c0-d6d2da3925d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_019ce8ce-fe07-70e6-98c3-f8cf8ff8759c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019ce8ce-fe07-7671-91c0-d6d2da3925d9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_019ce8ce-fe07-70e6-98c3-f8cf8ff8759c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_019ce8ce-fe07-7fb8-b593-f73b0b101377" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019ce8ce-fe07-7671-91c0-d6d2da3925d9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_019ce8ce-fe07-7fb8-b593-f73b0b101377" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesChargedToOtherAccounts_019ce8ce-fe07-7853-ae63-914624a05ad5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesChargedToOtherAccounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019ce8ce-fe07-7671-91c0-d6d2da3925d9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesChargedToOtherAccounts_019ce8ce-fe07-7853-ae63-914624a05ad5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDeductions_019ce8ce-fe07-78ad-8363-1d41c96f4a27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDeductions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019ce8ce-fe07-7671-91c0-d6d2da3925d9" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDeductions_019ce8ce-fe07-78ad-8363-1d41c96f4a27" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_019ce8ce-fe07-7ad5-a397-b472d4c3f9fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesBalance"/>
  </link:definitionLink>
</link:linkbase>
