Stancorp Financial (SFG) 10-K 2012 FY Annual report

EXHIBIT 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-78379, 333-35484, 333-99251, 333-116062, 333-167256 and 333-182999 on Form S-8 and Registration Statement No. 333-182759 on Form S-3 of our reports dated February 26, 2013, relating to the consolidated financial statements of StanCorp Financial Group, Inc. and subsidiaries, and the effectiveness of StanCorp Financial Group, Inc.’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of StanCorp Financial Group, Inc. for the year ended December 31, 2012.

/S/ DELOITTE & TOUCHE LLP        

DELOITTE & TOUCHE LLP

Portland, Oregon

February 26, 2013