Thomas Lennon (born August 9, 1970) is an American actor, screenwriter and producer. He frequently collaborates with Robert Ben Garant when screenwriting and producing films.

For Disney, Thomas Lennon voiced the character Atlas in Hercules: The Animated Series, Henry in Milo Murphy's Law and Scribble in Tinker Bell and the Legend of the NeverBeast and Secret of the Wings, he played Eric Montclare in Out Cold and Larry Murphy in Herbie: Fully Loaded which he was also a writer for. Also he was a writer for The Pacifier.

Outside of Disney, Lennon is known for his roles as Lieutenant Jim Dangle on the Comedy Central series Reno 911! and as Felix Unger on the CBS comedy sitcom The Odd Couple.