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    <div style="text-align: right;"><font style="font-weight: bold;">Registration No. 333-</font><font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 180pt">&#160;</font></div>
    <div style="text-align: center; font-weight: bold;">As filed with the Securities and Exchange Commission on February 22, 2023</div>
    <div style="text-align: center; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-weight: bold;">UNITED STATES</font></div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</font></div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-weight: bold;">Washington, D.C.&#160; 20549</font></div>
    <div style="text-align: center; font-size: 12pt;"><font style="font-weight: bold;"></font>_________________________</div>
    <div style="text-align: center; font-size: 12pt;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">FORM S-8</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">REGISTRATION STATEMENT</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">UNDER</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">THE SECURITIES ACT OF 1933</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">CFSB Bancorp, Inc.</div>
    <div style="text-align: center; font-size: 8pt;">(Exact Name of Registrant as Specified in its Charter)</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" id="zfd701f1788f148bda7d9449ad5aef26b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt; font-weight: bold;">United States of America</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt; font-weight: bold;">87-4396534</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center; font-size: 8pt;">(State or Other Jurisdiction of</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center; font-size: 8pt;">(I.R.S. Employer Identification No.)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center; font-size: 8pt;">Incorporation or Organization)</div>
          </td>
          <td style="width: 50%; vertical-align: top;">&#160;</td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">15 Beach Street</div>
    <div style="text-align: center;"><font style="font-size: 12pt; font-weight: bold;">Quincy, Massachusetts 02170</font></div>
    <div style="text-align: center;"><font style="font-size: 12pt; font-weight: bold;"></font><font style="font-size: 8pt;">(Address of Principal Executive Offices)</font><font style="font-size: 12pt; font-weight: bold;"></font></div>
    <div style="text-align: center;"><font style="font-size: 12pt; font-weight: bold;"> <br>
      </font></div>
    <div style="text-align: center;"><font style="font-size: 12pt; font-weight: bold;">CFSB, Inc. Bancorp 2023 Equity Incentive Plan</font></div>
    <div style="text-align: center;"><font style="font-size: 8pt;">(Full Title of the Plan)</font></div>
    <div style="text-align: center;"><font style="font-size: 8pt;"></font></div>
    <div style="text-align: center;"> <br>
    </div>
    <div style="text-align: center;">Copies to:</div>
    <table cellspacing="0" cellpadding="0" id="za732dd1f729147efa84971e6fb72bb46" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Michael E. McFarland</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Thomas P. Hutton, Esq.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">President and Chief Executive Officer</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Scott A. Brown, Esq.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">CFSB Bancorp, Inc.</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Luse Gorman, PC</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">15 Beach Street</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">5335 Wisconsin Ave., N.W., Suite 780</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Quincy, Massachusetts 02170</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Washington, DC 20015-2035</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">(617) 471-0750</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">(202) 274-2000</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">(Name, Address and Telephone</div>
          </td>
          <td style="width: 50%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">Number of Agent for Service)</div>
          </td>
          <td style="width: 50%; vertical-align: top;">&#160;</td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of &#8220;large
      accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company&#8221; and &#8220;emerging growth company&#8221; in Rule 12b-2 of the Securities Exchange Act of 1934, as amended:</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" id="z2bac04337a844afda874f7441aad3b73" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

        <tr>
          <td style="width: 66.66%; vertical-align: top;">
            <div>Large accelerated filer &#9744;</div>
          </td>
          <td style="width: 33.34%; vertical-align: top;">
            <div>Accelerated filer &#9744;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 66.66%; vertical-align: top;">
            <div>Non-accelerated filer&#160; &#8999;</div>
          </td>
          <td style="width: 33.34%; vertical-align: top;">
            <div>Smaller reporting company &#8999;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 66.66%; vertical-align: top;">
            <div>Emerging growth company &#8999;</div>
          </td>
          <td style="width: 33.34%; vertical-align: top;">&#160;</td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to
      Section 7(a)(2)(B) of the Securities Act. &#8999;</div>
    <div><br>
    </div>
    <div><br>
    </div>
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    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" id="z1e43037ef8a94a19b04bdb815c34ddd5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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          <td style="width: 10%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">PART I.</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</div>
            <div style="text-align: justify; font-weight: bold;"> <br>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">Items 1 and 2.</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">Plan Information; and Registrant Information and Employee Plan Annual Information</div>
            <div style="text-align: justify; font-weight: bold;"> <br>
            </div>
          </td>
        </tr>

    </table>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">The documents containing the information specified in Part I of Form S-8 have been or will be sent or given to participants in the CFSB Bancorp, Inc. 2023 Equity Incentive Plan
      (the &#8220;Plan&#8221;) as specified by Rule 428(b)(1) promulgated by the Securities and Exchange Commission (the &#8220;Commission&#8221;) under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;).</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Such documents are not being filed with the Commission but constitute (along with the documents incorporated by reference into this Registration Statement pursuant to Item 3 of
      Part II hereof) a prospectus that meets the requirements of Section 10(a) of the Securities Act.</div>
    <table cellspacing="0" cellpadding="0" id="z80e849b78eef44a28ef1074a0a077ee7" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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          <td style="width: 10%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">PART II.</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</div>
            <div style="text-align: justify; font-weight: bold;"> <br>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">Item 3.</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="text-align: justify; font-weight: bold;">Incorporation of Documents by Reference</div>
            <div style="text-align: justify; font-weight: bold;"> <br>
            </div>
          </td>
        </tr>

    </table>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">The following documents previously filed by CFSB Bancorp, Inc. (the &#8220;Company&#8221;) with the Commission under the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), are
      incorporated herein by reference (other than any such documents or portions thereof that are furnished under Item 2.02 or Item 7.01 of Form&#160;8-K,&#160;unless otherwise indicated therein, including any exhibits included with such Items):</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(a)<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>The Company&#8217;s Annual Report on<a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/1879103/000095017022018772/cfsb-20220630.htm"> Form 10-K for the year ended June 30, 2022</a>, filed with the Commission on September 22, 2022 pursuant to Section 13(a) of the Exchange Act&#160;(File
      No. 001-41220);</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(b)<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>The Company&#8217;s Quarterly Reports on <a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/1879103/000095017022023925/cfsb-20220930.htm">Form 10-Q for the quarter ended September 30, 2022</a>, filed with the Commission on November 9, 2022, and for <a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/1879103/000095017023002169/cfsb-20221231.htm">the quarter ended December 31, 2022</a>, filed with the Commission on February 8, 2023 (File No. for all 001-41220); and</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(c)<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>The description of the Company&#8217;s common stock contained in the
      Registration Statement on <a href="https://www.sec.gov/Archives/edgar/data/1879103/000094337422000013/form8a_0122.htm">Form 8-A12B</a> filed with the Commission on January 12, 2022, to register the Company&#8217;s common stock under the Exchange Act (File
      No. 001-41220), including any subsequent amendments or reports filed for the purpose of updating such description.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">All documents subsequently filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act, after the date hereof, and prior to the
      filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold, shall be deemed incorporated by reference into this Registration Statement and to be a
      part thereof from the date of the filing of such documents.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Any statement contained in the documents incorporated, or deemed to be incorporated, by reference herein or therein shall be deemed to be modified or superseded for purposes of
      this Registration Statement and the prospectus to the extent that a statement contained herein or therein or in any other subsequently filed document which also is, or is deemed to be, incorporated by reference herein or therein modifies or
      supersedes such statement.&#160; Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement and the prospectus.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">All information appearing in this Registration Statement and the prospectus is qualified in its entirety by the detailed information, including financial statements, appearing in
      the documents incorporated herein or therein by reference.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 4.&#160; Description of Securities</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">Not applicable.</div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 5.&#160; Interests of Named Experts and Counsel</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">None.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"> <br>
    </div>
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    </div>
    <div style="text-align: justify; margin-bottom: 12pt; font-weight: bold;">Item 6.&#160;&#160;Indemnification of Directors and Officers</div>
    <div style="text-align: justify; margin-bottom: 12pt;">Article XII of the Bylaws of CFSB Bancorp, Inc. (the &#8220;Company&#8221;) provide as follows:</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 1. Legal Action</font>.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(a)<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>The Company may indemnify any person who was or is a party or
      is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the Company) by reason of the fact that he or
      she is or was a director, officer or employee of the Company against expenses (including attorneys&#8217; fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or
      proceeding, if such person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to the best interests of the Company, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his
      or her conduct was unlawful.&#160; The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in
      good faith and in a manner which he or she reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal action or proceeding, that the person had reasonable cause to believe that his or her conduct
      was unlawful.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">(b)<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>The Company may indemnify any person who was or is a party, or
      is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the Company to procure a judgment in its favor by reason of the fact that such person is or was a director, officer or employee of the
      Company against expenses (including attorneys&#8217; fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit, if such person acted in good faith and in a manner he or she reasonably believed
      to be in, or not opposed to, the best interests of the Company, provided that no indemnification shall be made with respect to any claim, issue, or matter as to which such person has been adjudged to have been liable to the Company unless and only to
      the extent that the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability, but in view of all the circumstances of the case, such person is fairly and reasonably entitled to
      indemnity for such expenses as the court shall deem proper.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 2. Successful Defense</font>.&#160; To the extent that a present or former director, officer or employee of the Company has been successful,
      on the merits or otherwise, in the defense of any action, suit or proceeding referred to in this Article XII or in defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorneys&#8217; fees) actually
      and reasonably incurred by such person in connection therewith, if the person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, the best interests of the Company.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 3. Proper Determination</font>.&#160; Any indemnification under Sections 1 and 2 of this Article XII shall be made by the Company only as
      authorized in the specific case, upon a determination that indemnification of the present or former director, officer or employee is proper in the circumstances because he or she has met the applicable standard of conduct set forth in this Article
      XII. Such determination shall be made: (1) by the Board of Directors by a majority vote of a quorum consisting of directors who are not parties to such action, (2) by independent counsel, or (3) by the stockholders of the Company.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 4. Indemnification Not Exclusive</font>.&#160; The indemnification and advancement of expenses provided by or granted under this Article XII
      shall not be deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors, or otherwise, both as to action in his or
      her official capacity and as to action in another capacity while holding such office.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 5. Insurance</font>.&#160; The Company may purchase and maintain insurance on behalf of any person who is or was a director, officer or
      employee of the Company against any liability asserted against such person and incurred by such person in any such capacity, or arising out of his or her status as such, whether or not the Company would have the power to indemnify such person against
      such liability under the provisions of this Article XII.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 6. Continuation of Indemnification</font>.&#160; The indemnification and advancement of expenses provided by or granted under this Article XII
      shall, unless otherwise provided when authorized or ratified, continue as to a person who has ceased to be a director, officer or employee of the Company and shall inure to the benefit of the heirs, executors, and administrators of that person.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"> <br>
    </div>
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;"><font style="font-weight: bold;">Section 7. Applicable Law</font>.&#160; Notwithstanding any other provision of this Article XII, no indemnification or purchase of insurance may be
      promised or made unless in compliance with applicable laws, rules or regulations, including 12 CFR &#167;239.40, 12 USC &#167;1828(k) and 12 CFR Part 359.</div>
    <div style="text-align: justify; font-weight: bold;">Item 7.&#160; Exemption From Registration Claimed.</div>
    <div><br>
    </div>
    <div style="text-align: justify; text-indent: 36pt;">Not applicable.</div>
    <div><br>
    </div>
    <div style="text-align: justify; font-weight: bold;">Item 8.&#160; List of Exhibits.</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" id="z59abf998d0094ca8a9cb0d8746c89b62" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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          <td style="width: 19.92%; vertical-align: bottom; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">Regulation S-K</div>
            <div style="text-align: center;">Exhibit Number</div>
          </td>
          <td style="width: 2.82%; vertical-align: bottom;">&#160;</td>
          <td style="width: 77.26%; vertical-align: bottom; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">Document</div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="https://www.sec.gov/Archives/edgar/data/1879103/000119312521268646/d153463dex4.htm">4</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><a href="https://www.sec.gov/Archives/edgar/data/1879103/000119312521268646/d153463dex4.htm"><br>
            </a> </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div style="text-align: justify;"><a href="https://www.sec.gov/Archives/edgar/data/1879103/000119312521268646/d153463dex4.htm">Form of Common Stock Certificate (incorporated by reference to Exhibit 4 to the Registration Statement on Form S-1
                (File No. 333-259406) originally filed by the Company under the Securities Act with the Commission on September 9, 2021, and all amendments or reports filed for the purpose of updating such description)</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex5-s8_022223.htm">5</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex5-s8_022223.htm">Opinion of Luse Gorman, PC</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="https://www.sec.gov/Archives/edgar/data/1879103/000119312523007918/d439488ddef14a.htm">10.1</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div style="text-align: justify;"><a href="https://www.sec.gov/Archives/edgar/data/1879103/000119312523007918/d439488ddef14a.htm">CFSB Bancorp, Inc. 2023 Equity Incentive Plan (incorporated by reference to Appendix A to the proxy statement for
                the Annual Meeting of Stockholders of CFSB Bancorp, Inc., filed under the Exchange Act on January 13, 2023 (File No. 001-41220))</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex10-2_s8022223.htm">10.2</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex10-2_s8022223.htm">Form of Restricted Stock Award Agreement</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex10-3_s8022223.htm">10.3</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex10-3_s8022223.htm">Form of Incentive Stock Option Award Agreement</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex10-4_s8022223.htm">10.4</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex10-4_s8022223.htm">Form of Non-Qualified Stock Option Award Agreement</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex5-s8_022223.htm">23.1</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex5-s8_022223.htm">Consent of Luse Gorman, PC (contained in Exhibit 5)</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex23-2_s8022223.htm">23.2</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex23-2_s8022223.htm">Consent of Wolf &amp; Company, P.C. (Independent Registered Public Accounting Firm)</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="#POWEROFATTORNEY">24</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="#POWEROFATTORNEY">Power of Attorney (contained on signature page)</a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">&#160;</td>
          <td style="width: 2.82%; vertical-align: top;">&#160;</td>
          <td style="width: 77.26%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 19.92%; vertical-align: top;">
            <div style="text-align: center;"><a href="ex107-s8_022223.htm">107</a></div>
          </td>
          <td style="width: 2.82%; vertical-align: top;"><br>
          </td>
          <td style="width: 77.26%; vertical-align: top;">
            <div><a href="ex107-s8_022223.htm">Filing Fee Table</a></div>
          </td>
        </tr>

    </table>
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        <tr>
          <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 9.</td>
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            <div style="font-weight: bold;">Undertakings</div>
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    </table>
    <div><br>
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">The undersigned registrant hereby undertakes:</div>
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    <div style="text-align: justify; text-indent: 72pt; margin-bottom: 12pt;">(ii)<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>to reflect in the prospectus any facts or events arising
      after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement.&#160;
      Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum
      offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) (Section 230.424(b)) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering
      price set forth in the &#8220;Calculation of Registration Fees&#8221; table in the effective registration statement;</div>
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      of distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement;</div>
    <div style="text-align: justify; margin-bottom: 12pt;">provided, however, that paragraphs 1(i) and 1(ii) above do not apply if the information required to be included in a post-effective amendment by these paragraphs is contained in reports filed with
      or furnished to the Commission by the Company pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this Registration Statement.</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">2.<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>That, for the purpose of determining any liability under the
      Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial <font style="font-style: italic;">bona fide</font> offering thereof;</div>
    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">3.<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt">&#160;</font>To remove from registration by means of a post-effective
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      Securities Act, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that
      is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide
      offering thereof; and</div>
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      Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against
      public policy as expressed in the Securities Act and is, therefore, unenforceable.&#160; In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer
      or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the
      opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be
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    <div style="text-align: center;"><font style="font-weight: bold;">SIGNATURES</font></div>
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      that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement on Form S-8 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Quincy, Commonwealth of Massachusetts,
      on February 22, 2023.</div>
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        <tr>
          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
          <td style="width: 9.92%; vertical-align: top;">&#160;</td>
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            <div style="text-align: justify; font-weight: bold;">CFSB BANCORP, INC.</div>
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          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
          <td style="width: 9.92%; vertical-align: top;">&#160;</td>
          <td style="width: 48.16%; vertical-align: top;">&#160;</td>
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          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
          <td style="width: 9.92%; vertical-align: top;">&#160;</td>
          <td style="width: 48.16%; vertical-align: top;">&#160;</td>
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          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
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            <div style="text-align: right;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;By:&#160;&#160; <br>
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          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
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          <td style="width: 48.16%; vertical-align: top;">
            <div style="text-align: justify;">Michael E. McFarland</div>
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          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
          <td style="width: 9.92%; vertical-align: top;">&#160;</td>
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            <div style="text-align: justify;">President and Chief Executive Officer</div>
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          <td style="width: 41.92%; vertical-align: top;">&#160;</td>
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    <div style="text-align: center; font-weight: bold;"><a name="POWEROFATTORNEY"><!--Anchor--></a>POWER OF ATTORNEY</div>
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    <div style="text-align: justify; text-indent: 36pt; margin-bottom: 12pt;">We, the undersigned directors and officers of CFSB Bancorp, Inc. (the &#8220;Company&#8221;) hereby severally constitute and appoint Michael E. McFarland, as our true and lawful attorney and
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      rules, regulations and requirements of the Securities and Exchange Commission, in connection with the registration of shares of common stock to be granted and shares of common stock to be issued upon the exercise of stock options to be granted under
      the CFSB Bancorp, Inc. 2023 Equity Incentive Plan, including specifically, but not limited to, power and authority to sign for us in our names in the capacities indicated below the registration statement and any and all amendments (including
      post-effective amendments) thereto; and we hereby approve, ratify and confirm all that said Michael E. McFarland shall do or cause to be done by virtue thereof.</div>
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      <div style="text-indent: 36pt; margin-bottom: 12pt;">Pursuant to the requirements of the Securities Act, this registration statement has been signed by the following persons in the capacities and on the date indicated.</div>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
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            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
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            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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              <div>&#160;February 22, 2023</div>
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            <td style="width: 29.14%; vertical-align: top;">
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            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
          </tr>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 34.78%; vertical-align: top;">&#160;</td>
            <td style="width: 3.96%; vertical-align: top;">&#160;</td>
            <td style="width: 29.12%; vertical-align: top;">&#160;</td>
          </tr>
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            <td style="width: 29.14%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
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Registration No. 333-
As filed with the Securities and Exchange Commission on February 22, 2023
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549
_________________________
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
CFSB Bancorp, Inc.
(Exact Name of Registrant as Specified in its Charter)
United States of America
87-4396534
(State or Other Jurisdiction of
(I.R.S. Employer Identification No.)
Incorporation or Organization)
15 Beach Street
Quincy, Massachusetts 02170
(Address of Principal Executive Offices)
CFSB, Inc. Bancorp 2023 Equity Incentive Plan
(Full Title of the Plan)
Copies to:
Michael E. McFarland
Thomas P. Hutton, Esq.
President and Chief Executive Officer
Scott A. Brown, Esq.
CFSB Bancorp, Inc.
Luse Gorman, PC
15 Beach Street
5335 Wisconsin Ave., N.W., Suite 780
Quincy, Massachusetts 02170
Washington, DC 20015-2035
(617) 471-0750
(202) 274-2000
(Name, Address and Telephone
Number of Agent for Service)
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large
      accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Securities Exchange Act of 1934, as amended:
Large accelerated filer ☐
Accelerated filer ☐
Non-accelerated filer  ⌧
Smaller reporting company ⌧
Emerging growth company ⌧
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to
      Section 7(a)(2)(B) of the Securities Act. ⌧
PART I.
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
Items 1 and 2.
Plan Information; and Registrant Information and Employee Plan Annual Information
The documents containing the information specified in Part I of Form S-8 have been or will be sent or given to participants in the CFSB Bancorp, Inc. 2023 Equity Incentive Plan
      (the "Plan") as specified by Rule 428(b)(1) promulgated by the Securities and Exchange Commission (the "Commission") under the Securities Act of 1933, as amended (the "Securities Act").
Such documents are not being filed with the Commission but constitute (along with the documents incorporated by reference into this Registration Statement pursuant to Item 3 of
      Part II hereof) a prospectus that meets the requirements of Section 10(a) of the Securities Act.
PART II.
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference
The following documents previously filed by CFSB Bancorp, Inc. (the "Company") with the Commission under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), are
      incorporated herein by reference (other than any such documents or portions thereof that are furnished under Item 2.02 or Item 7.01 of Form 8-K, unless otherwise indicated therein, including any exhibits included with such Items):
(a)
The Company's Annual Report on
Form 10-K for the year ended June 30, 2022
, filed with the Commission on September 22, 2022 pursuant to Section 13(a) of the Exchange Act (File
      No. 001-41220);
(b)
The Company's Quarterly Reports on
Form 10-Q for the quarter ended September 30, 2022
, filed with the Commission on November 9, 2022, and for
the quarter ended December 31, 2022
, filed with the Commission on February 8, 2023 (File No. for all 001-41220); and
(c)
The description of the Company's common stock contained in the
      Registration Statement on
Form 8-A12B
filed with the Commission on January 12, 2022, to register the Company's common stock under the Exchange Act (File
      No. 001-41220), including any subsequent amendments or reports filed for the purpose of updating such description.
All documents subsequently filed by the Company with the Commission pursuant to Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act, after the date hereof, and prior to the
      filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold, shall be deemed incorporated by reference into this Registration Statement and to be a
      part thereof from the date of the filing of such documents.
Any statement contained in the documents incorporated, or deemed to be incorporated, by reference herein or therein shall be deemed to be modified or superseded for purposes of
      this Registration Statement and the prospectus to the extent that a statement contained herein or therein or in any other subsequently filed document which also is, or is deemed to be, incorporated by reference herein or therein modifies or
      supersedes such statement.  Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement and the prospectus.
All information appearing in this Registration Statement and the prospectus is qualified in its entirety by the detailed information, including financial statements, appearing in
      the documents incorporated herein or therein by reference.
Item 4.  Description of Securities
Not applicable.
Item 5.  Interests of Named Experts and Counsel
None.
Item 6.  Indemnification of Directors and Officers
Article XII of the Bylaws of CFSB Bancorp, Inc. (the "Company") provide as follows:
Section 1. Legal Action
.
(a)
The Company may indemnify any person who was or is a party or
      is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the Company) by reason of the fact that he or
      she is or was a director, officer or employee of the Company against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with such action, suit or
      proceeding, if such person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to the best interests of the Company, and, with respect to any criminal action or proceeding, had no reasonable cause to believe his
      or her conduct was unlawful.  The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in
      good faith and in a manner which he or she reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal action or proceeding, that the person had reasonable cause to believe that his or her conduct
      was unlawful.
(b)
The Company may indemnify any person who was or is a party, or
      is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the Company to procure a judgment in its favor by reason of the fact that such person is or was a director, officer or employee of the
      Company against expenses (including attorneys' fees) actually and reasonably incurred by such person in connection with the defense or settlement of such action or suit, if such person acted in good faith and in a manner he or she reasonably believed
      to be in, or not opposed to, the best interests of the Company, provided that no indemnification shall be made with respect to any claim, issue, or matter as to which such person has been adjudged to have been liable to the Company unless and only to
      the extent that the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability, but in view of all the circumstances of the case, such person is fairly and reasonably entitled to
      indemnity for such expenses as the court shall deem proper.
Section 2. Successful Defense
.  To the extent that a present or former director, officer or employee of the Company has been successful,
      on the merits or otherwise, in the defense of any action, suit or proceeding referred to in this Article XII or in defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorneys' fees) actually
      and reasonably incurred by such person in connection therewith, if the person acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, the best interests of the Company.
Section 3. Proper Determination
.  Any indemnification under Sections 1 and 2 of this Article XII shall be made by the Company only as
      authorized in the specific case, upon a determination that indemnification of the present or former director, officer or employee is proper in the circumstances because he or she has met the applicable standard of conduct set forth in this Article
      XII. Such determination shall be made: (1) by the Board of Directors by a majority vote of a quorum consisting of directors who are not parties to such action, (2) by independent counsel, or (3) by the stockholders of the Company.
Section 4. Indemnification Not Exclusive
.  The indemnification and advancement of expenses provided by or granted under this Article XII
      shall not be deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors, or otherwise, both as to action in his or
      her official capacity and as to action in another capacity while holding such office.
Section 5. Insurance
.  The Company may purchase and maintain insurance on behalf of any person who is or was a director, officer or
      employee of the Company against any liability asserted against such person and incurred by such person in any such capacity, or arising out of his or her status as such, whether or not the Company would have the power to indemnify such person against
      such liability under the provisions of this Article XII.
Section 6. Continuation of Indemnification
.  The indemnification and advancement of expenses provided by or granted under this Article XII
      shall, unless otherwise provided when authorized or ratified, continue as to a person who has ceased to be a director, officer or employee of the Company and shall inure to the benefit of the heirs, executors, and administrators of that person.
Section 7. Applicable Law
.  Notwithstanding any other provision of this Article XII, no indemnification or purchase of insurance may be
      promised or made unless in compliance with applicable laws, rules or regulations, including 12 CFR §239.40, 12 USC §1828(k) and 12 CFR Part 359.
Item 7.  Exemption From Registration Claimed.
Not applicable.
Item 8.  List of Exhibits.
Regulation S-K
Exhibit Number
Document
4
Form of Common Stock Certificate (incorporated by reference to Exhibit 4 to the Registration Statement on Form S-1
                (File No. 333-259406) originally filed by the Company under the Securities Act with the Commission on September 9, 2021, and all amendments or reports filed for the purpose of updating such description)
5
Opinion of Luse Gorman, PC
10.1
CFSB Bancorp, Inc. 2023 Equity Incentive Plan (incorporated by reference to Appendix A to the proxy statement for
                the Annual Meeting of Stockholders of CFSB Bancorp, Inc., filed under the Exchange Act on January 13, 2023 (File No. 001-41220))
10.2
Form of Restricted Stock Award Agreement
10.3
Form of Incentive Stock Option Award Agreement
10.4
Form of Non-Qualified Stock Option Award Agreement
23.1
Consent of Luse Gorman, PC (contained in Exhibit 5)
23.2
Consent of Wolf & Company, P.C. (Independent Registered Public Accounting Firm)
24
Power of Attorney (contained on signature page)
107
Filing Fee Table
Item 9.
Undertakings
The undersigned registrant hereby undertakes:
1.
To file, during any period in which offers or sales are being
      made, a post-effective amendment to the Registration Statement:
(i)
to include any prospectus required by Section 10(a)(3) of the
      Securities Act;
(ii)
to reflect in the prospectus any facts or events arising
      after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. 
      Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum
      offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) (Section 230.424(b)) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering
      price set forth in the "Calculation of Registration Fees" table in the effective registration statement;
(iii)
to include any material information with respect to the plan
      of distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement;
provided, however, that paragraphs 1(i) and 1(ii) above do not apply if the information required to be included in a post-effective amendment by these paragraphs is contained in reports filed with
      or furnished to the Commission by the Company pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this Registration Statement.
2.
That, for the purpose of determining any liability under the
      Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof;
3.
To remove from registration by means of a post-effective
      amendment any of the securities being registered which remain unsold at the termination of the offering;
4.
That, for purposes of determining any liability under the
      Securities Act, each filing of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that
      is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide
      offering thereof; and
5.
Insofar as indemnification for liabilities arising under the
      Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against
      public policy as expressed in the Securities Act and is, therefore, unenforceable.  In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer
      or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the
      opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be
      governed by the final adjudication of such issue.
SIGNATURES
The Registrant.
Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe
      that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement on Form S-8 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Quincy, Commonwealth of Massachusetts,
      on February 22, 2023.
CFSB BANCORP, INC.
By:
/s/ Michael E. McFarland
Michael E. McFarland
President and Chief Executive Officer
(Duly Authorized Representative)
POWER OF ATTORNEY
We, the undersigned directors and officers of CFSB Bancorp, Inc. (the "Company") hereby severally constitute and appoint Michael E. McFarland, as our true and lawful attorney and
      agent, to do any and all things in our names in the capacities indicated below which said Michael E. McFarland may deem necessary or advisable to enable the Company to comply with the Securities Act of 1933, as amended (the "Securities Act"), and any
      rules, regulations and requirements of the Securities and Exchange Commission, in connection with the registration of shares of common stock to be granted and shares of common stock to be issued upon the exercise of stock options to be granted under
      the CFSB Bancorp, Inc. 2023 Equity Incentive Plan, including specifically, but not limited to, power and authority to sign for us in our names in the capacities indicated below the registration statement and any and all amendments (including
      post-effective amendments) thereto; and we hereby approve, ratify and confirm all that said Michael E. McFarland shall do or cause to be done by virtue thereof.
Pursuant to the requirements of the Securities Act, this registration statement has been signed by the following persons in the capacities and on the date indicated.
Signatures
Title
Date
/s/ Michael E. McFarland
President and Chief Executive Officer and Director
February 22, 2023
Michael E. McFarland
(Principal Executive Officer)
/s/ Susan Shea
Treasurer and Chief Operating Officer
February 22, 2023
Susan Shea
(Principal Financial and Accounting Officer)
/s/ James M. O'Leary, Jr.
Chairman of the Board
February 22, 2023
James M. O'Leary, Jr.
/s/ Paul N. Baharian
Director
February 22, 2023
Paul N. Baharian
Signatures
Title
Date
/s/ Robert Guarnieri
Director
February 22, 2023
Robert Guarnieri
/s/ Edward J. Keohane
Director
February 22, 2023
Edward J. Keohane
/s/ Stephen D. Marini
Director
February 22, 2023
Stephen D. Marini
/s/ Tracy L. Wilson
Director
February 22, 2023
Tracy L. Wilson