Philipp Jarnach (26 July 1892 – 17 December 1982 in Börnsen) was a German composer of modern music ("Neue Musik"), pianist, teacher, and conductor.
Jarnach was born in Noisy-le-Sec, France, the son of a Spanish sculptor and a Flemish mother.
He later completed the opera Doktor Faust which Busoni had left unfinished on his death in 1924.
His students included Ivan Rebroff[4] (Hans Rolf Rippert as he was then, during his attendance at the Hochschule between 1950 and 1958), Kurt Weill, Otto Luening, Wilhelm Maler, Bernd Alois Zimmermann, Jürg Baur, Walter Steffens, Colin Brumby, Eberhard Werdin and Nikos Skalkottas.
Jarnach composed a Sinfonia brevis, a prelude for large orchestra, a quartet and a quintet for strings, further chamber music, especially for violin and piano, and vocal works.