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<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20230831
<FILING-DATE>20230831
<DATE-OF-FILING-DATE-CHANGE>20230831
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>Atlantica Sustainable Infrastructure plc
<CIK>0001601072
<ASSIGNED-SIC>4911
<IRS-NUMBER>000000000
<STATE-OF-INCORPORATION>X0
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>6-K
<ACT>34
<FILE-NUMBER>001-36487
<FILM-NUMBER>231228957
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>GREAT WEST HOUSE, GW1, 17TH FLOOR
<STREET2>GREAT WEST ROAD
<CITY>BRENTFORD
<STATE>X0
<ZIP>TW8 9DF
<PHONE>44 20 7098 4384
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>GREAT WEST HOUSE, GW1, 17TH FLOOR
<STREET2>GREAT WEST ROAD
<CITY>BRENTFORD
<STATE>X0
<ZIP>TW8 9DF
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>Atlantica Yield plc
<DATE-CHANGED>20160513
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<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>Abengoa Yield plc
<DATE-CHANGED>20140326
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<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>Abengoa Yield Ltd
<DATE-CHANGED>20140226
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<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>brhc20058090_6k.htm
<DESCRIPTION>6-K
<TEXT>
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      <div style="color: rgb(0, 0, 0); font-size: 14pt; font-weight: bold;">UNITED STATES</div>
      <div style="color: rgb(0, 0, 0); font-size: 14pt; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>
      <div style="color: rgb(0, 0, 0); font-size: 12pt; font-weight: bold;">Washington, D.C. 20549</div>
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      <div style="color: rgb(0, 0, 0);"> <br>
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      <div style="color: rgb(0, 0, 0); font-size: 18pt;">FORM 6-K</div>
      <div style="color: rgb(0, 0, 0);"> <br>
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      <div style="color: rgb(0, 0, 0); font-weight: bold;">REPORT OF FOREIGN PRIVATE ISSUER</div>
      <div style="color: rgb(0, 0, 0); font-weight: bold;">PURSUANT TO RULE 13a-16 OR 15d-16</div>
      <div style="color: rgb(0, 0, 0); font-weight: bold;">UNDER THE SECURITIES EXCHANGE ACT OF 1934</div>
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      <div style="color: rgb(0, 0, 0); font-weight: bold;">For the month of August 2023</div>
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      <div style="color: rgb(0, 0, 0); font-weight: bold;">Commission File Number 001-36487</div>
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      <div style="color: rgb(0, 0, 0); font-weight: bold;"> <br>
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      <div style="color: rgb(0, 0, 0); font-size: 24pt; font-weight: bold;">Atlantica Sustainable Infrastructure plc</div>
      <div>(Exact name of Registrant as Specified in its Charter)
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      <div style="color: rgb(0, 0, 0); font-weight: bold;">Not Applicable</div>
      <div style="color: rgb(0, 0, 0);">(Translation of Registrant&#8217;s name into English)</div>
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      <div style="color: rgb(0, 0, 0); font-weight: bold;"> <br>
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      <div style="color: rgb(0, 0, 0); font-weight: bold;">Great West House, GW1, 17th floor</div>
      <div style="color: rgb(0, 0, 0); font-weight: bold;">Great West Road</div>
      <div style="color: rgb(0, 0, 0); font-weight: bold;">Brentford, TW8 9DF</div>
      <div style="color: rgb(0, 0, 0); font-weight: bold;">United Kingdom</div>
      <div style="color: rgb(0, 0, 0); font-weight: bold;">Tel.: +44 203 499 0465</div>
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      <div style="text-align: justify; text-indent: 45pt;">Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:</div>
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              <div style="font-size: 12pt;">&#9746;<font style="font-size: 10pt;">&#160; Form 20-F</font></div>
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              <div style="font-size: 12pt;">&#9744;<font style="font-size: 10pt;">&#160; Form 40-F</font></div>
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      <div style="text-align: justify; text-indent: 45pt;">This Report on Form 6-K is incorporated by reference into the Registration Statement on Form F-3 of the Registrant filed with the Securities and Exchange Commission on August 3, 2021 (File
        333-258395).</div>
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        <div style="font-size: 12pt; text-align: justify;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">August 31, 2023 &#8211; Atlantica Sustainable Infrastructure plc (&#8220;Atlantica&#8221; or the &#8220;Company&#8221;) today announced that on August 30, 2023, it has
            received notice that Algonquin Power &amp; Utilities Corp. (&#8220;Algonquin&#8221;) has appointed Mr. Ryan Farquhar</font><font style="font-size: 10pt;">&#160;</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">to the Board of Directors of the Company
            pursuant to, among others, articles 72.3 and 72.5 of the Company's articles of association. Mr. Farquhar replaces Mr. George Trisic, who was appointed by Algonquin on October 9, 2020 and who has resigned from his position as director of the
            Company effective August 30, 2023.&#160; The Company thanks Mr. Trisic for his dedication and commitment to the Company.</font></div>
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      <div style="color: rgb(0, 0, 0); text-align: justify;">Mr. Farquhar is Senior Vice President, International Development at Algonquin.&#160; Mr. Farquhar joined Algonquin in 2018 and has been responsible for oversight of international growth, including
        utility mergers and acquisitions.&#160; He also leads solar and storage projects and asset recycling initiatives.&#160; Mr. Farquhar has broad investing experience, ranging from infrastructure and energy projects to venture capital and private equity. Mr.
        Farquhar holds a Bachelor of Laws Degree from the University of Western Ontario. Additionally, he holds a Bachelor of Commerce (Hons.) from Queen&#8217;s University.</div>
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        <div class="BRPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" class="BRPFPageNumber">2</font></div>
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      <div style="font-weight: bold;">SIGNATURES</div>
      <div style="font-weight: bold;"> <br>
      </div>
      <div style="text-align: justify;">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</div>
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              <div>ATLANTICA <font style="color: rgb(0, 0, 0);">SUSTAINABLE INFRASTRUCTURE PLC</font></div>
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              <div>
                <div>/s/ Santiago Seage</div>
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            <td style="width: 5%; vertical-align: top;" colspan="1">Name:</td>
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              <div>Santiago Seage</div>
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            <td style="width: 5%; vertical-align: top;" colspan="1">Title:</td>
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              <div>Chief Executive Officer</div>
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              <div>Date: August 31, 2023</div>
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