noun

• (countable) A British surname transferred from the given name.
• A Scottish surname from Scottish Gaelic.
• A placename:
• A village in Bulgaria
• A village and civil parish in Breckland district, Norfolk, England (OS grid ref TL9296).
• A city in Northern Manitoba, Canada.
• The Rural Municipality of Thompson, a rural municipality in Pembina Valley Region, Manitoba.
• A number of places in the United States:
• An unincorporated community in Bullock County, Alabama.
• An unincorporated community in Napa County, California.
• A town in Windham County, Connecticut.
• A minor city in Winnebago County, Iowa.
• An unincorporated community in Audrain County, Missouri.
• An unincorporated community in Jefferson County, Nebraska.
• A town in Sullivan County, New York.
• A city in Grand Forks County, North Dakota.
• A township and unincorporated community therein, in Geauga County, Ohio.
• A borough in Susquehanna County, Pennsylvania.
• An unincorporated community in Erin, Washington County, Wisconsin.
• A number of other townships in the United States, listed under Thompson Township.
• A member of a Salish people of British Columbia.
• (firearms) Ellipsis of Thompson submachine gun (“Tommy gun”). [A .45-caliber American submachine gun, having a wooden stock and a drum, stick, or box magazine.]