Unicorn Peak is a 5,100-foot-elevation (1,554 meter) mountain summit located within Olympic National Park in Clallam County of Washington state. Unicorn Peak is situated seven miles southwest of Port Angeles and three miles north-northwest of the park's Hurricane Ridge visitor center, in Daniel J. Evans Wilderness. Precipitation runoff from the mountain drains west to the Elwha River via Little River and Griff Creek. Topographic relief is significant as the west aspect rises 4,800 feet (1,463 meters) above the Elwha valley in approximately three miles.