Overcoat Peak, Mountain summit in King County, United States.

Overcoat Peak is a 7,432-foot (2,265 m) summit in Mount Baker-Snoqualmie National Forest, less than 0.4 mi (0.64 km) northwest of Chimney Rock and within the Alpine Lakes Wilderness. Overcoat Glacier lies on its east slopes.

Albert Hale Sylvester named the peak after leaving his coat on the mountain during a surveying trip in 1897, which was also the first ascent. The peak lies in Mount Baker-Snoqualmie National Forest, less than 0.40 mi northwest of Chimney Rock, and both are within the Alpine Lakes Wilderness.

The peak's name comes from Albert Hale Sylvester, who left his coat on the mountain during a surveying trip in 1897; that trip also produced the first ascent. The name has stuck ever since, and the mountain is listed as Overcoat Peak in Washington state records.

Overcoat Peak lies in the Alpine Lakes Wilderness of Mount Baker-Snoqualmie National Forest, less than 0.4 miles northwest of Chimney Rock. There is no maintained trail to the summit; approach routes cross steep, avalanche-prone slopes. Snow tends to be wet and heavy in winter, raising avalanche danger. Plan for cloudy weather and carry navigation gear.

Albert Hale Sylvester named the peak after leaving his coat on the mountain during a surveying trip in 1897, the same year as the first ascent. Overcoat Glacier lies on the east slopes, less than 0.4 miles (0.64 km) northwest of Chimney Rock, inside the Alpine Lakes Wilderness.