<?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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    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001430122</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
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      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <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>Hanstveit Arve</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Wells Fargo Clearing Services</name>
        <address>
          <com:street1>1 North Jefferson Avenue</com:street1>
          <com:city>St. Louis</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63103</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>20000</noOfUnitsSold>
      <aggregateMarketValue>254731.93</aggregateMarketValue>
      <noOfUnitsOutstanding>54499225</noOfUnitsOutstanding>
      <approxSaleDate>06/11/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>common</securitiesClassTitle>
      <acquiredDate>12/13/1998</acquiredDate>
      <natureOfAcquisitionTransaction>Pre-IPO</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>20000</amountOfSecuritiesAcquired>
      <paymentDate>12/13/1998</paymentDate>
      <natureOfPayment>cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Arve Hanstveit</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>Energy Recovery, Inc.</securitiesClassTitle>
      <saleDate>03/11/2025</saleDate>
      <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
      <grossProceeds>816243.32</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>the 20,000 shares sold were acquired on 12/13/1998, 12/13/2000 and 12/13/2005.</remarks>
    <noticeSignature>
      <noticeDate>06/11/2025</noticeDate>
      <signature>Arve Hanstveit</signature>
    </noticeSignature>
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144
0001430122
XXXXXXXX
LIVE
0001421517
Energy Recovery, Inc.
001-34112
1717 DOOLITTLE DRIVE
SAN LEANDRO
CA
94577
(510) 483-7370
Hanstveit Arve
Director
common
Wells Fargo Clearing Services
1 North Jefferson Avenue
St. Louis
MO
63103
20000
254731.93
54499225
06/11/2025
Nasdaq
common
12/13/1998
Pre-IPO
Issuer
N
20000
12/13/1998
cash
N
Arve Hanstveit
1717 Doolittle Drive
San Leandro
CA
94577
Energy Recovery, Inc.
03/11/2025
50000
816243.32
the 20,000 shares sold were acquired on 12/13/1998, 12/13/2000 and 12/13/2005.
06/11/2025
Arve Hanstveit