Washington Federal (WAFD) S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Amendment No. 1 to Registration Statement on Form S-4 of our reports dated November 21, 2016 relating to the consolidated financial statements of Washington Federal, Inc. and subsidiaries, and the effectiveness of Washington Federal, Inc. and subsidiaries’ internal control over financial reporting, incorporated by reference in the Annual Report on Form 10-K of Washington Federal, Inc. for the year ended September 30, 2016, and to the reference to us under the heading "Experts" in the Prospectus, which is part of this Registration Statement.

/s/ Deloitte & Touche LLP

Seattle, Washington

June 23, 2017