Lost Lake may refer to:
Communities United States Lost Lake, Mississippi, unincorporated community Lost Lake, Wisconsin, unincorporated community
Lakes
Canada
British Columbia Lost Lake (Mackenzie) near Mackenzie, British Columbia Lost Lake (Whistler)
United States Alaska Lost Lake Scout Camp
Arkansas Lost Lake, a lake in Clay County, Arkansas
California Lost Lake (El Dorado County, California) in the Desolation Wilderness area Lost Lake (San Bernardino County, California)
Massachusetts Lost Lake (Groton)
Michigan Lost Lake (Clare County, Michigan) Lost Lake Scout Reservation
Minnesota Lost Lake (Minnesota)
Montana Lost Lake (Carbon County, Montana) in Carbon County, Montana Lost Lake (Chouteau County, Montana) in Chouteau County, Montana Lost Lake (Flathead County, Montana) in Flathead County, Montana Lost Lake (Lake County, Montana) in Lake County, Montana Lost Lake (Lincoln County, Montata) in Lincoln County, Montana Lost Lake (Mineral County, Montana) in Mineral County, Montana Lost Lake (Missoula County, Montana) in Missoula County, Montana Lost Lake (Sweet Grass County, Montana) in Sweet Grass County, Montana Lost Lake (Stillwater County, Montana) in Stillwater County, Montana
Oregon Lost Lake (Oregon), several lakes, including: Lost Lake (Hood River County, Oregon) Lost Lake (Santiam Pass, Linn County, Oregon)
South Dakota Lost Lake (South Dakota), in Minnehaha County
Washington Lost Lake (Whatcom County), in Whatcom County Lost Lake (Lewis County), in Lewis County
Wisconsin Lost Lake (Vilas County) Lost Lake (Door County) in Jacksonport, Wisconsin Lost Lake (Sherman) in Sherman, Iron County, Wisconsin Lost Lake (Mercer) in Mercer, Wisconsin Lost Lake (Burnett County) Lost Lake (Jackson) in Jackson, Burnett County, Wisconsin Lost Lake (Webb Lake) in Webb Lake, Wisconsin Lost Lake (Rusk) in Rusk, Burnett County, Wisconsin
See also Long Lost Lake in Clearwater County, Minnesota Little Lost Lake by Avery, Idaho Lost Land Lake in Sawyer County, Wisconsin Big Lost Lake in Beltrami County East Lost Lake in Otter Tail County, Minnesota West Lost Lake in Otter Tail County, Minnesota