Clam Lake may refer to several places in the United States:
Michigan Clam Lake, a historic settlement that became Cadillac, Michigan, in Wexford County Clam Lake Township, Michigan, in Wexford County Clam Lake Canal, in Wexford County Clam Lake (Waterford Township, Michigan), a lake in Oakland County Clam Lake, a lake in the Elk River Chain of Lakes Watershed, Antrim County
Other states Clam Lake, Wisconsin, an unincorporated community Clam Lake, a lake in Martin County, Minnesota
See also Clam River (disambiguation)