Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated April 2, 2015, relating to the consolidated financial statements of Williams-Sonoma, Inc. and subsidiaries, and the effectiveness of Williams-Sonoma, Inc.’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Williams-Sonoma, Inc. for the fiscal year ended February 1, 2015.

/s/ DELOITTE & TOUCHE LLP

San Francisco, California

October 9, 2015