QuickLinks -- Click here to rapidly navigate through this document

Exhibit 23.5

[Letterhead of Pincock, Allen & Holt]

CONSENT OF PINCOCK, ALLEN & HOLT

        The undersigned, Pincock, Allen & Holt, hereby states as follows:

        Our firm assisted with technical studies, completed in 2003 (collectively, the "2003 Technical Studies"), concerning mineralized material contained in the Guadalupe de los Reyes and Yellow Pine properties, for Vista Gold Corp. (the "Company"), portions of which are summarized under the captions "Item 2. Properties — Guadalupe de los Reyes — Geology" and "Item 2. Properties — Yellow Pine — Geology" in this Annual Report on Form 10-K for the year ended December 31, 2005 (the "Form 10-K").

        We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-91254, 333-102384, 333-104443, 333-120335 and 333-129720) and in the related Prospectuses, and in the Registration Statement on Form S-8 (No. 333-105621) of the Company of the summary information concerning the 2003 Technical Studies, including the references to our firm included with such information, as set forth above in the Form 10-K.

PINCOCK, ALLEN & HOLT
By:	/s/  MARK G. STEVENS Name:    Mark G. Stevens, C.P.G. Title:    Chief Geologist

Date: March 17, 2006

QuickLinks

Exhibit 23.5