Thomas or Tom Foster may refer to:
Politics
Thomas Foster (English politician, died 1589), MP for Much Wenlock
Thomas Foster (English politician, died 1765) (c. 1720–1765), MP for Dorchester
Thomas F. Foster (1790–1848), American congressman from the state of Georgia
Thomas Jefferson Foster (1809–1887), Confederate soldier and politician during the American Civil War
Thomas Foster (Canadian politician) (1852–1945), Canadian politician and mayor of Toronto
Thomas Foster (American mayor), physician and mayor of Los Angeles
Sports
Thomas Foster (Derbyshire cricketer) (1848–1929), Derbyshire cricketer
Thomas Foster (Australian cricketer) (1883–1974), Australian cricketer
Thomas Foster (Yorkshire cricketer) (1871–1947), Yorkshire cricketer
Thomas Foster (Nottingham cricketer), Nottingham cricketer
Tommy Foster (racing driver), British racing driver
Other
Thomas Foster (painter) (1798–1826), Irish portrait painter
Thomas Foster (author) (died 1995), Australian Pentecostal minister and author
Thomas R. Foster (1835–1889), founder of the Inter-Island Steam Navigation Company
Thomas C. Foster, American author and professor of English
Thomas Campbell Foster, English barrister and writer on law, shorthand and Ireland
Tom Foster (musician), Australian Aboriginal musician
Tom Foster (comics), fictional comic book character
Tom Foster, a character in the 1908 film After Many Years