Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in the Registration Statement on Form F-3 and the related prospectus of Canadian Imperial Bank of Commerce (“CIBC”) for the registration of its senior debt securities and to the incorporation by reference therein of our reports of independent registered public accounting firm dated December 2, 2020 with respect to the consolidated financial statements of CIBC, which comprise the consolidated balance sheets of CIBC as at October 31, 2020 and October 31, 2019 and the consolidated statements of income, comprehensive income, changes in equity and cash flows for each of the years in the three-year period ended October 31, 2020, and CIBC’s effectiveness of internal control over financial reporting as of October 31, 2020, each of which is included in Exhibit B.3(b) incorporated by reference in its 2020 Annual Report on Form 40-F for the fiscal year ended October 31, 2020 filed with the Securities and Exchange Commission.
s/ Ernst & Young LLP
Ernst & Young LLP
Chartered Professional Accountants
Licensed Public Accountants
Toronto, Canada
June 15, 2021
