UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File No. 001-32210

NORTHERN DYNASTY MINERALS LTD.

(Translation of registrant's name into English)

14^thFloor - 1040 West Georgia Street

Vancouver, British Columbia, V6E 4H1, Canada

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F

Form 20-F ☐ Form 40-F ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1) ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7) ☐

SUBMITTED HEREWITH

Exhibits		Description
99.1		Press Release

SIGNATURES

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.

	Northern Dynasty Minerals Ltd.
	(Registrant)

Date: October 20, 2025	By:	/s/ Trevor Thomas
	By:	Trevor Thomas
	Title:	Secretary and General Counsel

NORTHERN DYNASTY MINERALS LTD 6-K