Die heilige Ente: ein Spiel mit Göttern und Menschen (German: The sacred duck: a play with Gods and men) is an opera with a prelude and three acts by the composer Hans Gál (his Op. 15), to a libretto by Karl Michael Leventzow and Leo Feld. Written in 1920–21, it was premiered in Düsseldorf on 29 April 1923 under the baton of Georg Szell.[1]