Grass Lake may refer to:
Canada Grass Lake (Haliburton County), Ontario Rural Municipality of Grass Lake No. 381, Saskatchewan
United States Grass Lake, Illinois, a community and lake in Lake County Grass Lake School District 36, Lake County, Illinois Grass Lake, Michigan, a village in Jackson County Grass Lake Charter Township, Michigan, in Jackson County Grass Lake Community Schools, Jackson County, Michigan Grass Lake High School, a high school in Grass Lake, Michigan Grass Lake (Kanabec County, Minnesota) Grass Lake, Minnesota, a community in Kanabec County Grass Lake Township, Kanabec County, Minnesota Grass Lake (New York), a lake in Jefferson County Grass Lake (Codington County, South Dakota) Grass Lake (Minnehaha County, South Dakota) Grass Lake Nature Park, a lake and nature preserve in Olympia, Washington
See also Grass Lake Township (disambiguation) Grassy Creek (disambiguation) Grassy Lake (disambiguation)