Thomas Dorsey may refer to:
- Tom Dorsey (1927-1939), Pseudonym for Columbia Recording Artist Dan Hornsby
- Tommy Dorsey (1905–1956), bandleader and jazz trombone player
- Thomas A. Dorsey (1899–1993), gospel composer and performer, known as Georgia Tom in his earlier jazz career
- Thomas Beale Dorsey (1780–1855), American politician and judge in Maryland