Martin Karl Woldemar Hasse (20 March 1883 – 31 July 1960) was a German university lecturer, composer and music writer.
This was followed by practical musical training at the Leipzig Conservatory with Stephan Krehl, Adolf Ruthardt, Karl Straube and Arthur Nikisch.
After a temporary activity as assistant to Philipp Wolfrum in Heidelberg and in Chemnitz as cantor, he became municipal music director in Bielefeld in 1910; in 1919, on his initiative, the Institut für Musik der Hochschule Osnabrück [de] was opened.
In 1923 he received his doctorate in musicology and in 1935 he became director of the Hochschule für Musik und Tanz Köln, his representative was Hermann Unger; Hasse held this office until his retirement in 1945.
Following Max Reger's training, he almost always strived for a strict polyphony structure of the composition, which would result in a self-contained and uniform work of art.