Tenaya Lake is a lake in Yosemite National Park, located between Yosemite Valley and Tuolumne Meadows.

Tenaya Lake was created by the Tenaya branch of the Tuolumne Glacier as it passed through Tenaya Canyon. The outflow of the lake is Tenaya Creek, which runs through Tenaya Canyon into Yosemite Valley. The surface of Tenaya Lake has an elevation of 8,150 feet (2,484 m).

Tenaya Lake is named after Chief Tenaya, who met the Mariposa Battalion near the shores of the lake. Ironically, Tenaya protested that the lake already had a name: Pie-we-ack, or "Lake of the Shining Rocks." This original name is now attached to a granite dome to the east of the lake.