Deep Lake may refer to:
Antarctica Deep Lake (Ross Island), a lake north of Cape Barne, Ross Island Deep Lake (Vestfold Hills, Antarctica), a hypersaline lake in the Vestfold Hills region of Antarctica
United States Deep Lake (California), a lake in Siskiyou County Deep Lake (Colorado), a lake in White River National Forest Deep Lake (Florida), a natural sinkhole in Big Cypress National Preserve Deep Lake (Oregon), several lakes Deep Lake (Thurston County, Washington), a lake in Millersylvania State Park Deep Lake (King County, Washington), a lake in Nolte State Park