Frank Nitti (born Francesco Raffaele Nitto, Italian pronunciation: [fran't?esko raffa'??le 'nitto]; January 27, 1886 – March 19, 1943) was an Italian-born American gangster in Chicago.
One of Al Capone's top henchmen, Nitti was in charge of all money flowing through the operation.
Nitti later succeeded Capone as boss of the Chicago Outfit.