EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

Acacia Research Corporation

New York, New York

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-249984) and on Forms S-8 (No. 333-189135 and No. 333-217878) of Acacia Research Corporation of our report dated March 31, 2022 relating to the consolidated financial statements, which appears in this Form 10-K.

/s/ BDO USA, LLP

New York, NY

March 31, 2022