Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on S-8 Forms (No. 333-174617, 333-158533 and 333-141353) of International Tower Hill Mines Ltd. of our report dated March 11, 2015, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in this Annual Report on Form 10-K.

/s/ PricewaterhouseCoopers

Chartered Accountants

Vancouver, British Columbia

March 11, 2015