Thomas Michael Gavin is a fictional character and the protagonist of the FX comedy-drama series Rescue Me. He is portrayed by Denis Leary. For his portrayal, Leary was nominated for a Golden Globe Award (2005) and two Emmy Awards. Leary and Peter Tolan, the creators of Rescue Me, named the character after a police officer from the Bronx whom Leary knew.

Rescue Me is an American dramedy television series that aired on FX from July 21, 2004, to September 7, 2011. The series focuses on the professional and personal lives of a group of New York City firefighters.