Theo Brandmüller (2 February 1948, Mainz - 26 November 2012, Saarbrücken) was a German contemporary classical composer, organist and teacher.
Brandmüller studied composition with Giselher Klebe, Mauricio Kagel, Cristobal Halffter and Olivier Messiaen, and the organ with Gaston Litaize.
He was elected as Professor of Composition at the Hochschule für Musik Saar in 1979. His pupils included the composers Lin Wang, Marc Schubring and Karola Obermüller, and the organist Dan Zerfaß.
- 1977: Composition Prize of the City of Stuttgart
- 1979: Rome Prize of the Villa Massimo
- 1986: Kunstpreis des Saarlandes