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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e6f0b-4e0d-7b17-ba9d-a8b4686576bd,g:05f32c5c-8825-4451-a158-a6f221f7deb5-->
<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.utzsnacks.com/role/CoverPage" xlink:type="simple" xlink:href="utz-20260526.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.utzsnacks.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019e6f0b-4e0e-73ba-b161-d226f398d617" 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_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_DocumentInformationTable_019e6f0b-4e0e-73ba-b161-d226f398d617" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationDocumentAxis_019e6f0b-4e0e-730e-90ad-911cdb631e75" 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_019e6f0b-4e0e-73ba-b161-d226f398d617" xlink:to="loc_dei_DocumentInformationDocumentAxis_019e6f0b-4e0e-730e-90ad-911cdb631e75" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentDomain_019e6f0b-4e0e-730e-90ad-911cdb631e75_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_019e6f0b-4e0e-730e-90ad-911cdb631e75" xlink:to="loc_dei_DocumentDomain_019e6f0b-4e0e-730e-90ad-911cdb631e75_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentDomain_019e6f0b-4e0e-7612-be04-47163bfa6f8c" 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_019e6f0b-4e0e-730e-90ad-911cdb631e75" xlink:to="loc_dei_DocumentDomain_019e6f0b-4e0e-7612-be04-47163bfa6f8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_FormerAddressMember_019e6f0b-4e0e-757b-b97b-239070e8fe1a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_FormerAddressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentDomain_019e6f0b-4e0e-7612-be04-47163bfa6f8c" xlink:to="loc_dei_FormerAddressMember_019e6f0b-4e0e-757b-b97b-239070e8fe1a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e6f0b-4e0e-70d8-8a1e-6312be7b7c1e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_DocumentType_019e6f0b-4e0e-70d8-8a1e-6312be7b7c1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e6f0b-4e0e-732c-bc4f-f08726bb4355" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_DocumentPeriodEndDate_019e6f0b-4e0e-732c-bc4f-f08726bb4355" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e6f0b-4e0e-77e1-bee0-3a73e0e7fad7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityRegistrantName_019e6f0b-4e0e-77e1-bee0-3a73e0e7fad7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e6f0b-4e0e-7344-b7a8-4d137cc8aab6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e6f0b-4e0e-7344-b7a8-4d137cc8aab6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e6f0b-4e0e-7f1c-bf76-686e4ef169f5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityFileNumber_019e6f0b-4e0e-7f1c-bf76-686e4ef169f5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e6f0b-4e0e-77e6-b465-a67a17a2649d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e6f0b-4e0e-77e6-b465-a67a17a2649d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e6f0b-4e0e-7056-a32a-de716c7f08e4" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityAddressAddressLine1_019e6f0b-4e0e-7056-a32a-de716c7f08e4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e6f0b-4e0e-7921-9548-9014065aac72" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityAddressCityOrTown_019e6f0b-4e0e-7921-9548-9014065aac72" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e6f0b-4e0e-73ec-b641-60e1e427b61b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityAddressStateOrProvince_019e6f0b-4e0e-73ec-b641-60e1e427b61b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e6f0b-4e0e-7b18-85c0-380b351338d9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityAddressPostalZipCode_019e6f0b-4e0e-7b18-85c0-380b351338d9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e6f0b-4e0e-7f9d-a403-81da67a33c14" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_CityAreaCode_019e6f0b-4e0e-7f9d-a403-81da67a33c14" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e6f0b-4e0e-7510-880f-f918f1a00195" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_LocalPhoneNumber_019e6f0b-4e0e-7510-880f-f918f1a00195" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e6f0b-4e0e-71ab-a246-2027da63f97d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_WrittenCommunications_019e6f0b-4e0e-71ab-a246-2027da63f97d" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e6f0b-4e0e-75c1-aad3-2ed294247e0f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_SolicitingMaterial_019e6f0b-4e0e-75c1-aad3-2ed294247e0f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e6f0b-4e0e-7527-a800-24e59c3582d3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_PreCommencementTenderOffer_019e6f0b-4e0e-7527-a800-24e59c3582d3" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e6f0b-4e0e-7ade-926c-7aa2f983d146" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e6f0b-4e0e-7ade-926c-7aa2f983d146" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e6f0b-4e0e-7dad-8637-3810c442047e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e6f0b-4e0e-7dad-8637-3810c442047e" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e6f0b-4e0e-7b58-9125-9bf44542ff74" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_EntityCentralIndexKey_019e6f0b-4e0e-7b58-9125-9bf44542ff74" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e6f0b-4e0e-77b7-8ba0-0d540fc82ab8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_AmendmentFlag_019e6f0b-4e0e-77b7-8ba0-0d540fc82ab8" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019e6f0b-4e0e-7579-b5f7-1cab2b2cb1de" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e6f0b-4e0e-7e3e-a4e0-649ef33bc290" xlink:to="loc_dei_CurrentFiscalYearEndDate_019e6f0b-4e0e-7579-b5f7-1cab2b2cb1de" xlink:type="arc" order="19"/>
  </link:definitionLink>
</link:linkbase>
