Edith Lake is a small alpine lake in Custer County, Idaho, United States, located high in the Sawtooth Mountains in the Sawtooth National Recreation Area.

The lake is approximately 16.5 miles (26.6 km) south of Stanley.

These trailheads can be accessed from State Highway 75 via Sawtooth National Forest road 208.

[1] With a surface elevation of 8,660 feet (2,640 m) above sea level, Sawtooth Lake often remains frozen into early summer.

The hike to Edith Lake from the Yellow Belly Lake trailhead is about 9 miles (14 km).