Valentin Georg Härtl (20 Juny[clarification needed] 1894 – 13 August 1966) was a German violist and violinist.
After his Abitur at the humanistic grammar school in Aschaffenburg, Härtl studied at the Hoch Conservatory in Frankfurt from 1910 to 1912[1] with Adolf Rebner, together with Paul Hindemith, with whom he had a lifelong friendship.
1913/1914 he was a pupil of the master class by professor Felix Berber at the Hochschule für Musik und Theater München in Munich.
Härtl was a member of many important chamber music ensembles: together with his academy colleagues Johannes Hegar (violoncello), Anton Huber (violin) and his former teacher Felix Berber (violin) in his Berber Quartet, the "Munich Viola Quintet, the "H-Trios" (H'uber-Härtl-Hindemith) and the Stross Quartet.
A member of Karl Richter's "Bach Orchestra", for decades, he was regarded as an indispensable "institution" in Munich concert life.