content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001270206</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001402057</issuerCik>
        <issuerName>CDW Corp</issuerName>
        <secFileNumber>001-35985</secFileNumber>
        <issuerAddress>
          <com:street1>200 N MILWAUKEE AVENUE</com:street1>
          <com:city>VERNON HILLS</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60061</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>847-465-6000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CORLEY CHRISTINA M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>34079</noOfUnitsSold>
        <aggregateMarketValue>7529442.78</aggregateMarketValue>
        <noOfUnitsOutstanding>133960369</noOfUnitsOutstanding>
        <approxSaleDate>12/14/2023</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>12/14/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Option Granted - 02/28/2017</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>34079</amountOfSecuritiesAcquired>
        <paymentDate>12/14/2023</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Christina Corley</name>
          <address>
            <com:street1>200 N. Milwaukee Avenue</com:street1>
            <com:city>Vernon Hills</com:city>
            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60061</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>11/22/2023</saleDate>
        <amountOfSecuritiesSold>48320</amountOfSecuritiesSold>
        <grossProceeds>10496677.95</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Christina Corley</name>
          <address>
            <com:street1>200 N. Milwaukee Avenue</com:street1>
            <com:city>Vernon Hills</com:city>
            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60061</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>12/13/2023</saleDate>
        <amountOfSecuritiesSold>700</amountOfSecuritiesSold>
        <grossProceeds>154003.99</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>12/14/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>08/22/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Bradley Camilo, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Christina Corley</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001270206
  XXXXXXXX
  LIVE
  0001402057
  CDW Corp
  001-35985
  200 N MILWAUKEE AVENUE
  VERNON HILLS
  IL
  60061
  847-465-6000
  CORLEY CHRISTINA M
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  34079
  7529442.78
  133960369
  12/14/2023
  NASDAQ
  Common
  12/14/2023
  Option Granted - 02/28/2017
  Issuer
  N
  34079
  12/14/2023
  Cash
  N
  Christina Corley
  200 N. Milwaukee Avenue
  Vernon Hills
  IL
  60061
  Common
  11/22/2023
  48320
  10496677.95
  Christina Corley
  200 N. Milwaukee Avenue
  Vernon Hills
  IL
  60061
  Common
  12/13/2023
  700
  154003.99
  12/14/2023
  08/22/2023
  /s/ Bradley Camilo, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Christina Corley