My Dear Killer (Italian: Mio caro assassino) is a 1972 Italian-Spanish giallo film directed by Tonino Valerii and starring George Hilton, Marilù Tolo, Patty Shepard, Helga Line, Salvo Randone and William Berger. Some critics considered it "one of the best films in the thriller genre" and as "one of the best, most vibrant and well designed products of Italian giallo."