Argonaut Peak, Mountain summit in Chelan County, United States.

Argonaut Peak is a mountain in the Stuart Range of the Cascade Mountains, located in the Alpine Lakes Wilderness area. The summit reaches approximately 8,453 feet and features three distinct granite peaks.

Argonaut Peak was first summited in September 1955 by Lex Maxwell, Bob McCall and Bill Prater, who climbed the south route. The peak lies on the crest between Colchuck Peak and Sherpa Peak, and its granite is part of the Mount Stuart batholith.

The name Argonaut Peak comes from the Argonauts of Greek myth, the crew who sailed with Jason on the Argo. The peak is one of the named summits of The Enchantments, a granite region in the Alpine Lakes Wilderness of Wenatchee National Forest. Climbers today use the south route taken by the first ascent team in 1955.

Two main routes provide access to the mountain: the Ingalls Trailhead approach from the south or the Stuart Lake Trailhead route starting near Leavenworth. Both paths require solid fitness and basic mountaineering experience.

The mountain features three summits of nearly equal height, with the western peak being the true highest point. The southeastern spire offers additional technical climbing challenges for those seeking more complex ascents.