Siskiwit Lake[1][2] is a small eutrophic[3] lake on the Bayfield Peninsula in Bayfield County in northern Wisconsin in the United States.

The lake is located about 4.5 miles (7.2 km) south of Siskiwit Bay, an arm of Lake Superior, and about 2 miles (3.2 km) north of the northern boundary of Chequamegon National Forest.

Parts of the small town of Bell border the lake, and there are several houses and vacation cabins[4] on the lake, most on the north shore.

The nearest major road, Wisconsin Highway 13, is about 3.5 miles (5.6 km) to the north, and the nearest large town, Washburn, is about 14 miles (23 km)[5] to the southeast, down County Trunk Highway C. Siskiwit Lake is 285 acres (1.15 km2) in area with a maximum depth of 13 feet (4.0 m)[2][3] and a shoreline circumference of four miles (6.4 km).

[3][5] Also present are Smallmouth Bass,[2][3][5] Bluegill,[2][5] Crappie, Pumpkinseed, Sucker, and Yellow Perch,[5] and Brook Trout.