Karl Eduard Maria Elmendorff (October 25, 1891 – October 21, 1962) was a German opera conductor.
Born in Düsseldorf, Elmendorff studied music at the Cologne College of Music and Hochschule für Musik Köln from 1913 to 1916 under Fritz Steinbach and Hermann Abendroth.
Early in his career, he conducted for a number of cities including:
1916 to 1920 in Düsseldorf
1920 to 1923 in Mainz
1923 to 1924 in Hagen
1925 at the Munich State Opera
1927 to 1942 at the Bayreuth FestivalElmendorff also was a regular guest conductor in various European cities, including at La Scala.