Louis DiGiaimo (1938 – December 19, 2015) was an American casting director and film producer. He was one of the casting directors of Francis Ford Coppola's The Godfather and went on to help cast multiple films each for directors William Friedkin, Barry Levinson and Ridley Scott. He also produced Mike Newell's Donnie Brasco alongside Levinson and, in 1998, he won the Primetime Emmy Award for Outstanding Casting for a Drama Series for Levinson's television series Homicide: Life on the Street.