| La Passion selon Sade | |
|---|---|
| Opera by Sylvano Bussotti | |
 Cathy Berberian, the vocal soloist, and Bussotti | |
| Translation | Passion, according to Sade |
| Librettist | Sylvano Bussotti |
| Language | Italian |
| Based on | Marquis de Sade's novels Justine and Juliette |
| Premiere | 5 September 1965 Teatro Biondo, Palermo |
La Passion selon Sade (The Passion according to Sade)[1] is an opera by Sylvano Bussotti who also wrote the libretto, and was the set designer and director. The subtitle is "mistero da camera", describing it as a chamber mystery play. It was Bussotti's first work for the stage. The opera premiered in 1965 in Palermo with soprano Cathy Berberian, who portrayed the titular characters from two novels by the Marquis de Sade, Justine and Juliette. It has been regarded as experimental musical theatre in several respects.