The Muskrat Dam Lake First Nation is an Oji-Cree First Nation band government in Northern Ontario. They reside on the 1,939.7 hectares Muskrat Dam Lake reserve, located on Muskrat Dam Lake in the Kenora District. The community of Muskrat Dam, Ontario, is located on this reserve. In June 2008, their total registered population was 387 people, of which their on-reserve population was around 195.