Thomas J. "Tommy" Carcetti is a fictional character on the HBO drama The Wire, played by Aidan Gillen. Carcetti is an ambitious and venal Baltimore politician who begins the series with a seat on the city council.

The Wire is an American crime drama television series created and primarily written by American author and former police reporter David Simon. The series was broadcast by the cable network HBO in the United States. The Wire premiered on June 2, 2002, and ended on March 9, 2008, comprising 60 episodes over five seasons. The idea for the show started out as a police drama loosely based on the experiences of Simon's writing partner Ed Burns, a former homicide detective and public school teacher.