Lake Mohonk is located in Ulster County, New York, United States.

[1] It is located approximately 14 miles (23 km) northwest of Poughkeepsie.

Activities on the lake are operated by Mohonk Mountain House.

The peak of Sky Top lies just east of the south end of the lake; to the west, Eagle Cliff rises to a height of 1,412 feet (430 m).

Competitors in the Survival of the Shawangunks swim the lake as their final aquatic leg of the competition.