Siegfried is a play written in 1928 by French dramatist Jean Giraudoux, adapted from his own 1922 novel Siegfried et le Limousin. The novel had launched Giraudoux's literary career, and now the play based upon it established his reputation as a playwright. "It [Siegfried] marked the beginning of a productive, lifelong collaboration with actor-director Louis Jouvet, whom Giraudoux credits with transforming his literary plays into theater pieces."