Joaquín "Jack" García (born 1952) is a Cuban-American retired FBI agent, best known for his undercover work infiltrating the Gambino crime family in New York City. García is regarded as one of the most successful and prolific undercover agents in the history of the FBI.

In his 26 years of service with the FBI and as an undercover agent in over 100 undercover operations, García is best known for his undercover role as "Jack Falcone," a self-described Sicilian jewel thief and drug dealer from Miami, Florida, who penetrated the Gambino crime family of the American Mafia in New York City for nearly three years. The case resulted in the arrest and conviction of 32 mobsters, including the top members of the Gambino crime family, including Acting Boss Arnold Squitieri and Acting Underboss Anthony Megale.