Anthony Joseph Giacalone (January 9, 1919 – February 23, 2001), also known as Tony Jack, was a Sicilian-American organized crime figure in Detroit, serving as a capo in the Detroit Partnership and later a street boss. He came to public notice during the 1970s investigations into the disappearance of Jimmy Hoffa, as he was one of two Mafia members – the other being Anthony Provenzano – that Hoffa had arranged to meet on the day he disappeared. In 1976, Giacalone was sentenced to 10 years in prison for tax evasion. He died of natural causes on February 23, 2001.