Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

1. Registration Statement on Form S-3 (No. 333-261081) of Gatos Silver, Inc., and

2. Registration Statements on Form S-8 (Nos. 333-249781 and 333-249782) of Gatos Silver, Inc.

of our report dated March 2, 2023 with respect to the consolidated financial statements of Gatos Silver, Inc. included in this Annual Report on (Form 10-K) for the year ended December 31, 2021.

/s/ Ernst & Young LLP

Chartered Professional Accountants, Licensed Public Accountants Toronto, Canada

March 20, 2023