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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

Date: March 10, 2023

Commission File Number:  001-33414

Denison Mines Corp.

(Name of registrant)

1100-40 University Avenue

Toronto ON

M5J 1T1 Canada

 (Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover 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): ☐

INCORPORATION BY REFERENCE

Exhibits 99.1, 99.2, 99.3, 99.4, 99.5, 99.6 and 99.7 to this report on Form 6-K are hereby incorporated by reference as an Exhibit to the Registration Statement on Form F-10 of Denison Mines Corp. (File No. 333-258939), as amended and supplemented.

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.

DENISON MINES CORP.

/s/ Amanda Willett

Date: March 10, 2023

Amanda Willett

Vice President Legal and Corporate Secretary

FORM 6-K EXHIBIT INDEX

Exhibit Number

    

Description

99.1

Consolidation Financial Statements for the year ended December 31, 2022

99.2

Management's Discussion and Analysis for the financial year ended December 31, 2022

99.3

Consent of KPMG LLP

99.4

Consent of Qualified Person

99.5

Consent of Qualified Person

99.6

Ontario Form 13-502F1 - Reporting Issuer Participation Fee Form

99.7

Alberta Form 13-501F1 - Reporting Issuer Participation Fee Form

101.INS

    

XBRL Instance Document

101.SCH

XBRL Taxonomy Extension Schema

101.LAB

XBRL Taxonomy Extension Label Linkbase

101.CAL

XBRL Taxonomy Extension Calculation Linkbase

101.PRE

XBRL Taxonomy Extension Presentation Linkbase

101.DEF

XBRL Taxonomy Extension Definition Linkbase