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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    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001208515</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</com:street1>
          <com:street2>Suite 200</com:street2>
          <com:city>North Bethesda</com:city>
          <com:stateOrCountry>MD</com:stateOrCountry>
          <com:zipCode>20852</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>301-998-8100</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Jeffrey Berkes</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>President</relationshipToIssuer>
          <relationshipToIssuer>Chief Operating Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue - 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>18353</noOfUnitsSold>
        <aggregateMarketValue>2122157.39</aggregateMarketValue>
        <noOfUnitsOutstanding>83670446</noOfUnitsOutstanding>
        <approxSaleDate>09/18/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/12/2022</acquiredDate>
        <natureOfAcquisitionTransaction>RSU Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>8939</amountOfSecuritiesAcquired>
        <paymentDate>02/12/2022</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/12/2023</acquiredDate>
        <natureOfAcquisitionTransaction>RSU Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>9414</amountOfSecuritiesAcquired>
        <paymentDate>02/12/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>09/18/2024</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Jeffrey Berkes</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001208515
  XXXXXXXX
  LIVE
  0000034903
  Federal Realty Investment Trust
  001-07533
  909 Rose Avenue
  Suite 200
  North Bethesda
  MD
  20852
  301-998-8100
  Jeffrey Berkes
  President
  Chief Operating Officer
  Common Stock
  J.P. Morgan Securities LLC
  390 Madison Avenue - 6th Floor
  New York
  NY
  10017
  18353
  2122157.39
  83670446
  09/18/2024
  NYSE
  Common Stock
  02/12/2022
  RSU Vesting
  Issuer
  N
  8939
  02/12/2022
  N/A
  Common Stock
  02/12/2023
  RSU Vesting
  Issuer
  N
  9414
  02/12/2023
  N/A
  Y
  09/18/2024
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Jeffrey Berkes