Alexandru Pașcanu (born May 3, 1920, Bucharest - d. July 6, 1989 Bucharest) was a Romanian composer and music teacher.He studied between 1938 and 1946 at the Bucharest Conservatory, with Marțian Negrea, Nicolae Brânzeu, Dimitrie Cuclin, Constantin Brăiloiu and Ionel Perlea as teachers. In parallel, he attended the courses of the Faculty of Law in Bucharest (1938-1944). From 1952 he taught music and solfeggio at the Conservatory, and from 1966 he became professor of harmony. In addition to other articles on music theory, he also published a two-volume Treatise on Harmony, reissued several times.