Thomas Swann (1809–1883) was the governor of Maryland, U.S.A.
Thomas Swann may also refer to: Thomas Swann (attorney), lawyer who served as United States Attorney for the District of Columbia from 1821 to 1833 Thomas Swann (councillor), planter and tavernkeeper who served in both houses of the colonial Virginia General Assembly Thomas Burnett Swann (1928–1976), American poet, critic and fantasy author Thomas Swann (rower) (born 1987), Australian rower
See also Thomas Swan (disambiguation)