Arnold Feil (2 October 1925 – 30 March 2019) was a German musicologist and academic scholar.
He studied music (piano and conducting) at the Hochschule für Musik und Darstellende Kunst Mannheim and the Hochschule für Musik und Darstellende Kunst Mannheim as well as musicology, Latin philology of the Middle Ages, history (Middle Ages), philosophy and history of art at Ruprecht-Karls-Universität Heidelberg, which he completed with a doctorate in 1954.
From 1954 to 1958, he worked as a music commissioner at the cultural office of the city of Ludwigshafen am Rhein.
He habilitated at the Eberhard Karls University of Tübingen in 1965 and was an associate professor of musicology there from 1972.
On the occasion of Feil's 90th birthday, the University of Tübingen hosted a ceremony on 13 October 2015 with greetings from Jürgen Leonhardt and Thomas Schipperges.