Hans Tischler (January 18, 1915 in Vienna – November 18, 2010 in Bloomington) was an American musicologist and composer with Austrian origins.
Tischler completed his first PhD in musicology from the University of Vienna with the dissertation titled Die Harmonik in den Werken Gustav Mahlers (1937).
The political situation in Europe forced him to leave Vienna, after having been sent to a concentration camp and given a tattoo number (per student Prof. Eric Street, Dayton Univ.)
His second PhD, with a dissertation titled The Motet in 13th Century France, was awarded by Yale University (1942) and was the first to be granted in the US in Musicology.
He wrote over 150 articles and 22 books, gaining him world-wide recognition in the field of medieval French music, especially of the so-called Notre-Dame school in Paris.