As filed with the Securities and Exchange Commission on August 6, 2026

Registration No. 333-_____________

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

First Northwest Bancorp Amended and Restated 2020 Equity Incentive Plan

(Full Title of the Plan)

(Name, address and telephone number, including area code, of agent for service)

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting Registrant or an emerging growth Registrant. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting Registrant,” and “emerging growth Registrant” in Rule 12b-2 of the Exchange Act.

If an emerging growth Registrant, 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. ☐

EXPLANATORY NOTE

This Registration Statement on Form S-8 (the “Registration Statement”) is filed by First Northwest Bancorp (the “Registrant”) for the purpose of registering an additional 300,000 shares of the Registrant’s common stock, par value $0.01 per share (the “Common Stock”) that may be issued pursuant to awards under the Registrant’s Amended and Restated 2020 Equity Incentive Plan (the “Plan”). At the Registrant’s annual meeting of shareholders held on May 19, 2026, the Registrant’s shareholders approved the amendment to the Plan to increase the number of shares reserved by the additional 300,000 shares of Common Stock being registered by this Registration Statement.

In accordance with General Instruction E to Form S-8, the Registrant incorporates herein by reference the Form S-8 filed by the Registrant on May 21, 2020, registering 520,000 shares of Common Stock reserved under the Plan (SEC File No. 333-238569) together with all exhibits filed therewith or incorporated therein by reference.

PART I

INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

The information called for in Part I of Form S-8 is not being filed with or included in this Registration Statement (by incorporation by reference or otherwise) in accordance with the rules and regulations of the Securities and Exchange Commission (the “Commission”).

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.                  Incorporation of Documents by Reference.

The following documents filed by the Registrant with the Commission are hereby incorporated by reference:

All documents subsequently filed (but not furnished) by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act prior to the completion or termination of this offering of securities will be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing of these documents.

Any statement contained in this Registration Statement, in an amendment hereto or in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any subsequently filed amendment to this Registration Statement or in any document that also is or is deemed to be incorporated by reference herein 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, except as to such specific section of such statements as set forth therein.

Under no circumstances shall any information furnished under Item 2.02 and/or Item 7.01 of Current Report on Form 8-K and any corresponding exhibits thereto be deemed incorporated herein by reference unless such Current Report on Form 8-K expressly provides to the contrary.

Not applicable.

Not applicable.

Section 23B.08.510 of the Washington Business Corporation Act (the “WBCA”) authorizes Washington corporations to indemnify their officers and directors under certain circumstances against expenses and liabilities incurred in legal proceedings involving them as a result of their services as an officer or director. Section 23B.08.560 of the WBCA authorizes a corporation by provision in its articles of incorporation to agree to indemnify a director made party to a proceeding or obligate itself to advance or reimburse expenses incurred in a proceeding without regard to the limitations of Sections 23B.08.510 through 23B.08.550 of the WBCA, subject to certain limitations.

The Registrant’s articles of incorporation provide that, in all circumstances and to the full extent permitted by the WBCA, the Registrant must indemnify any of its current or former directors or officers who were or are a party or are threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative and whether formal or informal (including an action by or in the right of the Registrant) by reason of the fact that said person is or was a director or officer of the Registrant. However, this indemnification does not apply to:

Any indemnification payments made pursuant to the Registrant’s articles of incorporation is subject to and conditioned upon their compliance with Section 18(k) of the Federal Deposit Insurance Act and the regulations promulgated thereunder by the Federal Deposit Insurance Corporation.

Insurance

The Registrant maintains directors’ and officers’ liability insurance under which the Registrant’s directors and officers are insured against loss (as defined) as a result of claims brought against them based upon their acts or omissions in such capacities, including civil liabilities under the Securities Act of 1933, as amended.

Not applicable.

+ Denotes a management contract or compensatory plan or arrangement.

(1)         To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) To include any prospectus required by section 10(a)(3) of the Securities Act of 1933;

(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) 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 Fee” table in the effective registration statement; and

(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that the undertakings set forth in paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply if information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the Registrant 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.

(b)         The undersigned registrant hereby undertakes that, for purposes of determining 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.

(c)         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 Securities and Exchange 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

Pursuant to the requirements of the Securities Act of 1933, 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 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Port Angeles, State of Washington, on this 6th day of August, 2026.

POWER OF ATTORNEY

Each of the undersigned officers and directors of First Northwest Bancorp hereby constitute and appoint Curt T. Queyrouze and Phyliss R. Nomura, each acting alone, with power to act as his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or her and in his or her stead, in any and all capacities to sign any and all amendments (including post-effective amendments) to this Registration Statement and all documents relating thereto, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent, full power and authority to do and perform each and every act and thing necessary or advisable to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed below by the following persons in the capacities indicated on August 6, 2026.

ATTACHMENTS / EXHIBITS

EXHIBIT 5.1

EXHIBIT 23.2

EXHIBIT FILING FEES

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