Amadeus is a 1984 American period biographical drama film directed by Miloš Forman, starring F. Murray Abraham and Tom Hulce. Peter Shaffer adapted it from his 1979 stage play Amadeus, originally inspired by Alexander Pushkin's 1830 play Mozart and Salieri. Shaffer described it as a "fantasia on [a real-life] theme", as it imagines a rivalry between two 18th century Vienna composers, Wolfgang Amadeus Mozart (Hulce) and Antonio Salieri (Abraham). Salieri struggles to reconcile his professional admiration and jealous hatred for Mozart, and resolves to ruin Mozart's career as his vengeance against God.

Amadeus received its world premiere in Los Angeles on September 6, 1984. It was released by Orion Pictures thirteen days later on September 19, 1984, to widespread acclaim as a box office hit, grossing over $90 million. It was nominated for 53 awards and received 40, including eight Academy Awards (including Best Picture and Best Director), four BAFTA Awards, four Golden Globe Awards (including Best Motion Picture – Drama and Best Director), and a Directors Guild of America Award for Outstanding Directing – Feature Film. Abraham and Hulce were both nominated for the Academy Award for Best Actor, with Abraham winning. In 1998, the American Film Institute ranked it 53rd on its 100 Years... 100 Movies list. In 2019, the film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".