Orgasmo (Italian for "orgasm") is a 1969 giallo film co-written and directed by Umberto Lenzi and starring Carroll Baker, Lou Castel, and Colette Descombes. It follows a wealthy American socialite who finds herself preyed upon by two nefarious young siblings who indulge her in sex, drugs, and alcohol while she vacations at an Italian villa. This film helped launch the second phase of Baker's career, during which she became a regular star in Italian productions.

After its Italian premiere in February 1969, Orgasmo was released in the United States under the alternative title Paranoia later that same year. It was one of the first films to carry an X rating in the United States under the newly established Motion Picture Association film rating system, and this fact was sensationalized for its American promotional materials.

The film marked the first of four collaborations between Lenzi and actress Carroll Baker, who also starred in So Sweet... So Perverse (1969), A Quiet Place to Kill (1970) and Il coltello di ghiaccio (1972).