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>0001232218</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
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      <issuerInfo>
        <issuerCik>0001421517</issuerCik>
        <issuerName>Energy Recovery, Inc.</issuerName>
        <secFileNumber>001-34112</secFileNumber>
        <issuerAddress>
          <com:street1>1717 DOOLITTLE DRIVE</com:street1>
          <com:city>SAN LEANDRO</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94577</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>(510) 483-7370</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Mao Robert Yu Lang</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</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>35779</noOfUnitsSold>
        <aggregateMarketValue>563244.43</aggregateMarketValue>
        <noOfUnitsOutstanding>57078540</noOfUnitsOutstanding>
        <approxSaleDate>03/04/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/04/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Option Granted - 06/23/2016</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>15270</amountOfSecuritiesAcquired>
        <paymentDate>03/04/2024</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/04/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Option Granted - 06/23/2015</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>20509</amountOfSecuritiesAcquired>
        <paymentDate>03/04/2024</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Robert Y. Mao</name>
          <address>
            <com:street1>1717 Doolittle Drive</com:street1>
            <com:city>San Leandro</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>94577</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/29/2024</saleDate>
        <amountOfSecuritiesSold>39314</amountOfSecuritiesSold>
        <grossProceeds>612484.60</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Robert Y. Mao</name>
          <address>
            <com:street1>1717 Doolittle Drive</com:street1>
            <com:city>San Leandro</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>94577</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>03/04/2024</saleDate>
        <amountOfSecuritiesSold>38025</amountOfSecuritiesSold>
        <grossProceeds>616315.72</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>03/04/2024</noticeDate>
        <signature>/s/ Kevin Johnson, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert Y. Mao</signature>
      </noticeSignature>
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text: 144
  0001232218
  XXXXXXXX
  LIVE
  0001421517
  Energy Recovery, Inc.
  001-34112
  1717 DOOLITTLE DRIVE
  SAN LEANDRO
  CA
  94577
  (510) 483-7370
  Mao Robert Yu Lang
  Director
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  35779
  563244.43
  57078540
  03/04/2024
  NASDAQ
  Common
  03/04/2024
  Option Granted - 06/23/2016
  Issuer
  N
  15270
  03/04/2024
  Cash
  Common
  03/04/2024
  Option Granted - 06/23/2015
  Issuer
  N
  20509
  03/04/2024
  Cash
  N
  Robert Y. Mao
  1717 Doolittle Drive
  San Leandro
  CA
  94577
  Common
  02/29/2024
  39314
  612484.60
  Robert Y. Mao
  1717 Doolittle Drive
  San Leandro
  CA
  94577
  Common
  03/04/2024
  38025
  616315.72
  03/04/2024
  /s/ Kevin Johnson, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert Y. Mao