Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in this Registration Statement (FormS-3) and related Prospectus of Arcus Biosciences, Inc. for the registration of common stock, preferred stock, debt securities, warrants, and to the incorporation by reference therein of our report dated March 5, 2020, with respect to the consolidated financial statements of Arcus Biosciences, Inc., included in its Annual Report (Form10-K) for the year ended December 31, 2019, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
Redwood City, California
May 27, 2020