Anthony "Fat Tony" D'Amico is the name of two recurring characters in the animated sitcom The Simpsons. Both are voiced by Joe Mantegna and first appeared in the episode "Bart the Murderer" of the third season. Fat Tony is a mobster and the underboss of the Springfield Mafia. His henchmen include Legs, Louie, and Johnny Tightlips, and he answers to Don Vittorio DiMaggio. Upon the death of the original Fat Tony in the episode "Donnie Fatso" of the twenty-second season, the character's near-identical cousin of the same name is introduced. The characters somewhat resemble real-life mobster Anthony "Fat Tony" Salerno.

Joseph Anthony Mantegna is an American actor. He has starred in the CBS television series Criminal Minds since 2007 as FBI Supervisory Special Agent David Rossi. He has voiced the recurring role of mob boss Fat Tony on the animated series The Simpsons, beginning with the 1991 episode "Bart the Murderer", as well as The Simpsons Movie (2007).