Efthymis Filippou (Greek: Ευθύμης Φιλίππου, pronounced [efˌθimis fiˈlipu]; born 18 January 1977) is a Greek screenwriter, known for his collaborations with Yorgos Lanthimos. He was the winner of the Golden Osella Award for Best Screenplay at the 68th Venice International Film Festival in 2011, which he shared with Yorgos Lanthimos. In 2016, he was invited from the Academy of Motion Picture Arts and Sciences to become a member.