Landforms •
Flat (landform), a relatively level area within a region of greater relief •
Mudflat, intertidal wetland with a substrate of fine sediments
Bodies of water • Flat, a shallow water area in the context of
boating,
fishing or
marine biology, often used in plural form •
Brewster Flats, an area of Cape Cod Bay off the shore of Massachusetts, U.S. •
Kentish Flats Offshore Wind Farm, off the coast of Kent, England •
Rhyl Flats, a wind farm off the coast of North Wales •
Flat coast, a shoreline where the land descends gradually into the sea
Places United States •
Flat, Alaska, a census-designated place •
Flat, Kentucky, an unincorporated community •
Flat, Missouri, an unincorporated community •
Flat, Texas, an unincorporated community •
Flat Brook, a tributary of the Delaware River in Sussex County, New Jersey •
Flats, Nebraska, United States •
Flats, West Virginia, an unincorporated community •
Forest Lake Area Trail System, Missouri
Other •
Flat, Puy-de-Dôme, a commune in the French region of Auvergne •
Flat Island (disambiguation), in various places •
Flat Islands (disambiguation), in Canada and Antarctica •
Flat River (disambiguation), in the United States and Canada ==Mathematics==