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>0001910100</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001163302</issuerCik>
        <issuerName>UNITED STATES STEEL CORP</issuerName>
        <secFileNumber>001-16811</secFileNumber>
        <issuerAddress>
          <com:street1>600 GRANT ST</com:street1>
          <com:street2>ROOM 1500</com:street2>
          <com:city>PITTSBURGH</com:city>
          <com:stateOrCountry>PA</com:stateOrCountry>
          <com:zipCode>15219-2800</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>415 433 2967</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Brown Daniel R</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>5000</noOfUnitsSold>
        <aggregateMarketValue>175000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>223038500</noOfUnitsOutstanding>
        <approxSaleDate>11/24/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/22/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>429</amountOfSecuritiesAcquired>
        <paymentDate>02/22/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/25/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>3627</amountOfSecuritiesAcquired>
        <paymentDate>02/25/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/26/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>944</amountOfSecuritiesAcquired>
        <paymentDate>02/26/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Daniel Brown</name>
          <address>
            <com:street1>600 Grant Street</com:street1>
            <com:city>Pittsburgh</com:city>
            <com:stateOrCountry>PA</com:stateOrCountry>
            <com:zipCode>15219-2800</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>10/02/2023</saleDate>
        <amountOfSecuritiesSold>4860</amountOfSecuritiesSold>
        <grossProceeds>160380.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>11/24/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>02/08/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Daniel R Brown</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4644}]
text: 144
  0001910100
  XXXXXXXX
  LIVE
  0001163302
  UNITED STATES STEEL CORP
  001-16811
  600 GRANT ST
  ROOM 1500
  PITTSBURGH
  PA
  15219-2800
  415 433 2967
  Brown Daniel R
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  5000
  175000.00
  223038500
  11/24/2023
  NYSE
  Common
  02/22/2022
  Restricted Stock Vesting
  Issuer
  N
  429
  02/22/2022
  Compensation
  Common
  02/25/2022
  Restricted Stock Vesting
  Issuer
  N
  3627
  02/25/2022
  Compensation
  Common
  02/26/2022
  Restricted Stock Vesting
  Issuer
  N
  944
  02/26/2022
  Compensation
  N
  Daniel Brown
  600 Grant Street
  Pittsburgh
  PA
  15219-2800
  Common
  10/02/2023
  4860
  160380.00
  11/24/2023
  02/08/2023
  /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Daniel R Brown