William Peter McGivern (December 6, 1918 – November 18, 1982) was an American novelist and television scriptwriter. He published more than 20 novels, mostly mysteries and crime thrillers, some under the pseudonym Bill Peters.
His novels were adapted for a number of films, including Odds Against Tomorrow (1959), a noir tale of three losers, starring Harry Belafonte; The Big Heat (1953), starring Glenn Ford as a cop who will do anything to get his man; Shield for Murder, about an honest cop going bad; and Rogue Cop (1954), a film noir directed by Roy Rowland, about a crooked cop trying to redeem himself. The Big Heat received an Edgar Award in 1954 as Best Motion Picture, which McGivern shared as author of the original novel. He also published more than 100 science-fiction stories during the 1940s and 1950s. In the 1960s, he moved to Los Angeles, where he wrote for television and film.