The gray snub-nosed monkey, also known as Brelich's snub-nosed monkey, Guizhou snub-nosed monkey, and Guizhou golden monkey, is a species of primate in the family Cercopithecidae. It is endemic to China, where it is known as the Guizhou golden hair monkey (黔金丝猴) or gray golden hair monkey (灰金丝猴). It is threatened by habitat loss. Of the three species of snub-nosed monkeys in China, the gray snub-nosed monkey is the most threatened, with a total population thought to number fewer than 400 individuals.