Paul Dehn (1912 – 1976) was a British screenwriter, best known for Goldfinger, The Spy Who Came in from the Cold, various sequels of Planet of the Apes and the 1974 film Murder on the Orient Express which featured Albert Finney as Hercule Poirot. Dehn received an Oscar nomination for this film.
Dehn was also the uncle of Kika Markham who played the part of Countess Rossakoff in The Double Clue episode of Agatha Christie's Poirot.