content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001601170</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000106535</issuerCik>
        <issuerName>WEYERHAEUSER CO</issuerName>
        <secFileNumber>001-04825</secFileNumber>
        <issuerAddress>
          <com:street1>220 OCCIDENTAL AVENUE SOUTH</com:street1>
          <com:city>SEATTLE</com:city>
          <com:stateOrCountry>WA</com:stateOrCountry>
          <com:zipCode>98104</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>206-539-3000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Merle Denise M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>225 Liberty St</com:street1>
            <com:street2>Floor 37</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10281</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>7500</noOfUnitsSold>
        <aggregateMarketValue>242151.38</aggregateMarketValue>
        <noOfUnitsOutstanding>730748000</noOfUnitsOutstanding>
        <approxSaleDate>09/13/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/10/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of performance unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>WEYERHAEUSER CO</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>7500</amountOfSecuritiesAcquired>
        <paymentDate>02/10/2022</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>09/13/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>06/14/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>Denise Merle</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001601170
  XXXXXXXX
  LIVE
  0000106535
  WEYERHAEUSER CO
  001-04825
  220 OCCIDENTAL AVENUE SOUTH
  SEATTLE
  WA
  98104
  206-539-3000
  Merle Denise M
  Officer
  Common Stock
  Merrill Lynch
  225 Liberty St
  Floor 37
  New York
  NY
  10281
  7500
  242151.38
  730748000
  09/13/2023
  NYSE
  Common Stock
  02/10/2022
  Vesting of performance unit award
  WEYERHAEUSER CO
  N
  7500
  02/10/2022
  Granted as part of issuer equity compensation plan
  Y
  09/13/2023
  06/14/2023
  Denise Merle