Farewell (French: L'affaire Farewell; literally The Farewell Affair) is a 2009 French espionage thriller film directed by Christian Carion, starring Guillaume Canet and Emir Kusturica. The film is loosely based on the actions of the high-ranking KGB official, Vladimir Vetrov. It was released in the United States in June 2010. It was adapted from the book Bonjour Farewell: La vérité sur la taupe française du KGB (1997) by Serguei Kostine.

The movie was filmed in Ukraine and Finland because Russia refused to provide a permit for filming in Moscow. A Reuters news item also stated that the government "dissuaded Russian movie actor Sergei Makovetsky and Russian producer and director Nikita Mikhalkov from participating in the film" (according to the director).