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>0001189906</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000034903</issuerCik>
        <issuerName>FEDERAL REALTY INVESTMENT TRUST</issuerName>
        <secFileNumber>001-07533</secFileNumber>
        <issuerAddress>
          <com:street1>909 ROSE AVENUE, SUITE 200</com:street1>
          <com:city>NORTH BETHESDA</com:city>
          <com:stateOrCountry>MD</com:stateOrCountry>
          <com:zipCode>20852</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>3019988100</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>WOOD DONALD C</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Shares of Beneficial Interest</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston   </com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>36929</noOfUnitsSold>
        <aggregateMarketValue>4281548.26</aggregateMarketValue>
        <noOfUnitsOutstanding>83670446</noOfUnitsOutstanding>
        <approxSaleDate>09/05/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Shares of Beneficial Interest</securitiesClassTitle>
        <acquiredDate>06/09/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Gift</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Stacey S. Wood</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>Y</isGiftTransaction>
        <donarAcquiredDate>06/09/2023</donarAcquiredDate>
        <amountOfSecuritiesAcquired>16929</amountOfSecuritiesAcquired>
        <paymentDate>06/09/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Shares of Beneficial Interest	</securitiesClassTitle>
        <acquiredDate>09/18/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Gift</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Stacey S. Wood	</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>Y</isGiftTransaction>
        <donarAcquiredDate>09/18/2019</donarAcquiredDate>
        <amountOfSecuritiesAcquired>20000</amountOfSecuritiesAcquired>
        <paymentDate>09/18/2019</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>Shares are to be sold from Great Falls Trust DTD 07/08/2019 - Donald C. Wood, Trustee</remarks>
      <noticeSignature>
        <noticeDate>09/05/2024</noticeDate>
        <signature>/s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Donald C. Wood</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3659}]
text: 144
  0001189906
  XXXXXXXX
  LIVE
  0000034903
  FEDERAL REALTY INVESTMENT TRUST
  001-07533
  909 ROSE AVENUE, SUITE 200
  NORTH BETHESDA
  MD
  20852
  3019988100
  WOOD DONALD C
  Officer
  Common Shares of Beneficial Interest
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  36929
  4281548.26
  83670446
  09/05/2024
  NYSE
  Common Shares of Beneficial Interest
  06/09/2023
  Gift
  Stacey S. Wood
  Y
  06/09/2023
  16929
  06/09/2023
  N/A
  Common Shares of Beneficial Interest
  09/18/2019
  Gift
  Stacey S. Wood
  Y
  09/18/2019
  20000
  09/18/2019
  N/A
  Y
  Shares are to be sold from Great Falls Trust DTD 07/08/2019 - Donald C. Wood, Trustee
  09/05/2024
  /s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Donald C. Wood