Mephisto is a 1981 political drama film co-written and directed by István Szabó, and based on the novel of the same title by Klaus Mann. It stars Klaus Maria Brandauer as a German stage actor (modeled on Gustaf Gründgens) who finds unexpected success and mixed blessings in the popularity of his performance in a Faustian play as the Nazis take power in pre-WWII Germany. As his associates and friends flee or are underground by the Nazi regime, the popularity of his character ends up superseding his own existence, until he finds that his best performance is keeping up appearances for his Nazi patrons.

The film was a co-production of Hungarian, Austrian, and West German studios; starring a mix of German and Hungarian-speaking actors. It premiered in Budapest on 11 February 1981, and received widespread acclaim from critics, winning the Academy Award for Best Foreign-Language Film, the first Hungarian picture to do so. Brandauer's performance earned him multiple accolades, including BAFTA and German Film Award nominations, and launched his film career.