Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Post-Effective Amendment No. 2 to Registration Statement No. 333-169746 on Form S-1 of our report dated May 5, 2010, relating to the 2008 and 2009 consolidated financial statements of Oncothyreon Inc. and subsidiaries, appearing in the Annual Report on Form 10-K of Oncothyreon Inc. for the year ended December 31, 2010, and to the reference to us under the heading “Experts” in the Prospectus, which is part of such Registration Statement.

/s/ Deloitte & Touche LLP

Seattle, Washington
March 14, 2011