Leó Weiner (16 April 1885 – 13 September 1960), was one of the leading Hungarian music educators of the first half of the twentieth century, and a composer.
Weiner was born in Budapest to a Jewish family. He had his first music and piano lessons from his brother, and later studied at the Academy of Music in Budapest, studying with János (Hans) Koessler. While there, he won numerous prizes, including the Franz Liszt Stipend, the Volkmann Prize and the Erkel Prize (all for one composition: his Serenade, Opus 3), the Haynald Prize for his Agnus Dei, and the Schunda Prize for the Hungarian Fantasy for tárogató and cimbalom (Weissmann and Berlász 2001).
In 1908, he was appointed music theory teacher at the Budapest Academy of Music, professor of composition in 1912 and professor of chamber music in 1920 (Weissmann and Berlász 2001). In 1949 he retired as emeritus professor, but continued to teach until the end of his life. He died in Budapest. Among his many notable students were conductors Fritz Reiner, Georg Solti and Béla Síki, cellist János Starker, and pianist György Sebők.
As a composer, the early Romantics from Beethoven through Mendelssohn most strongly influenced Weiner's style. His orchestration seems much indebted to later Romantic French composers not notably affected by Wagner, Bizet in particular. This conservative Romantic approach formed the basis of his style, to which elements of Hungarian folk music were added sometime later, although he was not an active field researcher of folk music as were his contemporaries Bartók and Kodály, but simply shared an interest in the subject and added elements of folk music into his established harmonic language without significantly changing it (Weissmann and Berlász 2001).