Chimney Rock, Mountain summit in Alpine Lakes Wilderness, Washington, United States

Chimney Rock is a mountain in the Alpine Lakes Wilderness of Washington's Central Cascade Range, with a central spire at 7,727 feet, a northeast spire at 7,634 feet, and a minor south peak at 7,440 feet. Its craggy profile stands on the crest dividing the Snoqualmie and Yakima river drainages, 10 miles north-northeast of Snoqualmie Pass. Three glaciers—Overcoat Glacier on the north, Chimney Glacier on the south and east, and an unnamed glacier on the east side of the North Peak—cling to its flanks.

A 1923 report of a summit party proved false, as that group had climbed Lemah Mountain instead. In 1925 climbers declared the summit probably impossible, but on August 27, 1930, Forest Farr, Art Winder and Laurence Byington reached it via the south and east face after several days of exploration. Jim Crooks and Fred Beckey made the next ascent only in 1940.

The name comes from the mountain's craggy profile, the most distinctive peak on the crest between the Snoqualmie and Yakima drainages. Climbers rate sections of the route YDS Class 5, so parties carry ropes and rock protection. The first ascent took Forest Farr, Art Winder and Laurence Byington several days of exploration in August 1930.

Access is via the Pete Lake Trail, which branches into multiple climbing routes of varying difficulty. Most routes require solid rock climbing skills and proper equipment.

The mountain carries three glaciers: Overcoat Glacier on the north side, Chimney Glacier on the south and east, and an unnamed glacier on the east side of the North Peak. The 7,634-foot North Peak spire stands apart from the 7,727-foot central spire.