The Piano Teacher (French: La Pianiste, lit. 'The Pianist') is a 2001 erotic psychological drama film written and directed by Michael Haneke, based on the 1983 novel of the same name by Elfriede Jelinek. It tells the story of an unmarried piano teacher (Isabelle Huppert) at a Vienna conservatory, living with her mother (Annie Girardot) in a state of emotional and sexual disequilibrium, who enters into a sadomasochistic relationship with her student (Benoît Magimel). A co-production of Austria and France, Haneke was given the opportunity to direct after previous attempts to adapt the novel by filmmakers Valie Export and Paulus Manker collapsed for financial reasons.

At the 2001 Cannes Film Festival, it won the Grand Prix; the two leads, Huppert and Magimel, won Best Actress and Best Actor. It went on to receive positive reviews and other awards and nominations.