Mount Clark, Mountain summit in the Olympic Mountains, Jefferson County, Washington, United States

Mount Clark is a summit in the Olympic Mountains that reaches 2,295 meters, part of the Needles geological formation. Its south face offers multiple climbing routes of varying difficulty for mountaineers of different skill levels.

The mountain was named in 1965 to honor Irving M. Clark, a Seattle conservationist who helped establish Olympic National Park. It has since become an established climbing objective with a steady presence in mountaineering history.

The name honours Irving M. Clark (1882–1960), a Seattle conservationist and a leader in the campaign to establish Olympic National Park; the peak was officially named in 1965. The first ascent, on 21 August 1940, was made by George R. Martin and Elvin Johnson, who called it Mt. Belvedere.

The best climbing season is from July through September when conditions are most stable. Mountaineers should arrive fully equipped with ropes, protection gear, and ice climbing equipment for the technical sections.

The ascent follows a corkscrew route from Clark/Johnson col, winding across ledges on multiple sides of the peak. This exposed climbing path switches directions several times before reaching the north face, making navigation an important part of the climb.