Ptarmigan Peak is a 2,972-foot-elevation (906-meter) mountain summit in Alaska, United States.

Ptarmigan Peak is located on Baranof Island and 9.4 miles (15.1 km) north-northwest of Port Alexander, Alaska.

Although modest in elevation, topographic relief is significant as the summit rises 2,972 feet (906 m) above tidewater of Big Branch Bay in 1.5 miles (2.4 km) and 1,400 feet (427 m) above an unnamed lake to the north in 0.35 mi (0.56 km).

[1] Based on the Köppen climate classification, Ptarmigan Peak is located in a subpolar oceanic climate zone with long, cold, snowy winters, and cool summers.

[5] Weather systems coming off the Gulf of Alaska are forced upwards by the mountains (orographic lift), causing heavy precipitation in the form of rain and snow.