(b Hamburg, 14 Aug. 1902; d Herisau, 20 Jun. 1981)
German dancer, choreographer, ballet master, and teacher. His early interest in dance was developed by Sarah Norden, a student of Laban in Hamburg and in 1920 he made his debut at the Hamburger Kammerspiele, after which he founded his own group. In 1924 he joined Jooss's Neue Tanzbühne, moving with him to Essen in 1928 where they founded the Folkwang Tanz Theatre and co-directed the dance department of the Folkwang School. With Jooss he also emigrated to Dartington, England, in 1934 where they co-directed the Jooss-Leeder School and in 1935 the Jooss Ballet. They moved to Cambridge in 1940, with Leeder becoming ballet master of the company until 1947 and choreographing Sailor's Fancy (mus. Martin Penny). After the company disbanded he opened his own school in London. Between 1955 and 1964 he was teaching in Santiago at the University of Chile, after which he moved his school to Herisau, Switzerland, where he remained until his death.