Jacobowsky und der Oberst, Op. 49, (Jacobovsky and the Colonel) is an opera in four acts by Giselher Klebe who also wrote the libretto based on the 1944 play ' by Franz Werfel.
It premiered on 2 November 1965 at the Hamburg State Opera which had commissioned the work. Klebe dedicated it to the then director of the Staatsoper, Rolf Liebermann.
Time and place: 1940, Paris, St. Cyrill, Bayonne and Saint-Jean-de-Luz
The first American performance was on 27 June 1967 at the Metropolitan Opera in New York City, using the same cast, conducted by Matthias Kuntzsch.