EXHIBIT 15.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Teekay Tankers Ltd.

We consent to the incorporation by reference in the Registration Statements Nos. 333-148055, 333-194404 and 333-223824 on Form S-8 of the Entity of:

•our report dated March 31, 2023 on the consolidated financial statements of Teekay Tankers Ltd. (the “Entity”) which comprise the consolidated balance sheets as of December 31, 2022 and December 31, 2021, the related consolidated statements of income (loss), changes in equity and cash flows for each of the years in the three-year period ended December 31, 2022, and the related notes (collectively the “consolidated financial statements”), and

•our report dated March 31, 2023 on the effectiveness of the Entity’s internal control over financial reporting as of December 31, 2022

each of which appear in the Annual Report on Form 20-F of the Entity for the fiscal year ended December 31, 2022.

/s/ KPMG LLP

Chartered Professional Accountants

March 31, 2023

Vancouver, Canada