Lake of Bays is a large lake in the District Municipality of Muskoka in Central Ontario, Canada. It is located almost entirely in the Township municipality of Lake of Bays, which is named after the lake, with the exception of the southwest arm of the lake which is in the Town of Huntsville. Ontario Highway 35 runs north and east of the lake.

Lake of Bays is a township municipality within the District Municipality of Muskoka, Ontario, Canada. The township, situated 193 kilometres (120 mi) north of Toronto, is named after the Lake of Bays. During the 2016 census, the township had a population of 3,167 and encompassed 677.91 square kilometres (261.74 sq mi) of land.