Lewis Lake can refer to the following:
United States Lewis Lake (Kanabec County, Minnesota) Lewis Lake, in Sumter Township, McLeod County, Minnesota Lewis Lake (Massachusetts), located in Winthrop, Massachusetts Lewis Lake, Minnesota, an unincorporated community in Kanabec County, Minnesota Lewis Lake (Wyoming), a lake in Yellowstone National Park Lake Lewis, a temporary lake created by the Missoula Floods
Canada Lewis Lake, Nova Scotia, various places Lewis Lake (Cochrane District), Ontario Lewis Lake (Kenora District), Ontario Lewis Lake (Algoma District), Ontario Lewis Lake (Manitoulin District), Ontario