Sergio Bergonzelli (25 August 1924 – 24 September 2002) was an Italian director, screenwriter, producer and actor.

Born in Alba, Cuneo, Bergonzelli graduated in Philosophy, then he started working as an actor with the stage name Siro Carme. After being assistant and second unit director in a number of genre films, in 1960 he made his debut as director and screenwriter with Seven in the Sun. Also a film producer, Bergonzelli was the first to produce Spaghetti Western films entirely shot in Italy. In the 1970s he specialized in the erotic genre.