Martin Schlumpf (born 3 December 1947) is a Swiss musician, composer, conductor, improviser (double bass, saxophone and bass clarinet) and academic teacher.
Born in Aarau, Schlumpf studied at the conservatory of Zurich, the clarinet with Hansjürg Leuthold, piano with Warren Thewand Evelyne Dubourg, conducting with Ferdinand Leitner, theory and composition with Rudolf Kelterborn. He continued his studies with Boris Blacher in Berlin.
From 1977 to 2011 he was professor of music theory and improvisation at the Departement Musik of the Zürcher Hochschule der Künste (ZHdK, formerly Musikhochschule). He served the department as Konventspräsident from 1999 to 2010.