Peter DiFronzo

Peter DiFronzo (May 13, 1933 – December 4, 2020) was an American mobster in the Chicago Outfit.

DiFronzo was a made member in the Chicago Outfit. In 1965, he was sentenced to 10 years at Leavenworth Prison after he and two Outfit affiliates robbed a warehouse in Forest View, Illinois, of cigarettes, razor blades, and ladies hosiery. He was featured in William F. Roemer Jr's War of the Godfathers: The Bloody Confrontation Between the Chicago and New York Families for Control of Las Vegas in 1990.

His wife, Josephine, was part owner of D&P Trucking, located in Chicago, Illinois, though authorities believe it was DiFronzo and his brothers Joe and John that actually ran the enterprise. DiFronzo was also supposedly active in some of the Outfit's racketeering schemes. DiFronzo's name appeared on a 2002 FBI list as a potential threat to the life of Nick Calabrese, a star witness in Operation Family Secrets under federal protection.

DiFronzo died from pneumonia caused by hypertension and COVID-19 at his home in South Barrington, Illinois on December 4, 2020, amid the COVID-19 pandemic in Illinois. He was 87 years old.