Thomas Dennis may refer to:
Thomas Dennis (priest) (1869–1917), Anglican priest Thomas Dennis Company LLC, bus manufacturer established in 1999 Tom Dennis (snooker player) (1882–1940), snooker and billiards player Tom Dennis (rugby league), rugby league footballer of the 1930s
See also Thomas Denis (born 1997), French track and road cyclist Thomas Denys (c. 1477–1561), MP for Devon