Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
Phio Pharmaceuticals Corp.
Marlborough, Massachusetts
We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement of our report dated March 25, 2021, relating to the consolidated financial statements of Phio Pharmaceuticals Corp. appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.
We also consent to the reference to us under the caption “Experts” in the Prospectus.
/s/ BDO USA, LLP
Boston, Massachusetts
May 13, 2021