EXHIBIT 5.1

KPMG LLP
Bay Adelaide Centre
333 Bay Street, Suite 4600
Toronto, ON M5H 2S5 Tel 416-777-8500 Fax416-777-8818 www.kpmg.ca

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Alamos Gold Inc.

We consent to the use of our report dated February 22, 2023, on the consolidated financial statements of Alamos Gold Inc. (the “Entity”), which comprise the consolidated statements of financial position as of December 31, 2022 and December 31, 2021, the related consolidated statements of comprehensive income (loss), changes in equity, and cash flows for each of the years in the two-year period ended December 31, 2022, and the related notes, and our report dated February 22, 2023 on the effectiveness of internal control over financial reporting as of December 31, 2022, which are incorporated by reference in the Registration Statement on Form F-10 dated May 31, 2023 of the Entity.

/s/ KPMG LLP

Chartered Professional Accountants, Licensed Public Accountants

May 31, 2023

Toronto, Canada

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EXHIBIT 5.1