Thomas Dewey (disambiguation)

Thomas E. Dewey (1902–1971) was Governor of New York.

Thomas Dewey may also refer to:
 * Thomas Charles Dewey (1840–1926), President of the Prudential Assurance Company
 * Thomas B. Dewey (1915–1981), American crime novelist
 * Thomas E. Dewey Jr. (born 1932), son of the governor, investment banker
 * Thomas R. Dewey (born 1978), American actor, producer, and writer