Efrem Kurtz (Russian: Ефрем Курц; November 7, 1900 – June 27, 1995) was a Russian conductor.
Kurtz was born in Saint Petersburg, Russia. He studied at the Saint Petersburg conservatory with Alexander Glazunov and Nikolai Tcherepnin, among others. He later studied in Riga, Berlin and in Leipzig, in the last city as a pupil of Arthur Nikisch.
Kurtz made his conducting debut when he substituted for an ill Nikisch to accompany the dancer Isadora Duncan on tour. This led to a number of concerts with the Berlin Philharmonic. From 1924 to 1933 he conducted the Stuttgart Philharmonic, and in 1928, Kurtz was enagaged by Anna Pavlova to accompany her dancing, which he did until her death in 1931. From 1932 to 1942 he was conductor of the Ballet Russe de Monte Carlo, touring with them extensively. His work in Monte Carlo included conducting the premiere of Gaîté Parisienne.
Kurtz later moved to the United States, and became a citizen of that country in 1944. He was music director of the Kansas City Philharmonic from 1943 to 1948. He held the same post with the Houston Symphony from 1948 to 1954, when his contract was not renewed. Kurtz also conducted a number of film scores, including Jacques Ibert's score for Orson Welles' Macbeth.