Claus Bantzer (born 10 October 1942 in Marburg) is a German church musician, composer and director.

Bantzer began studying piano, organ, and conducting at the music school of the university of Frankfurt am Main.

He continued his studies in Hamburg (Hochschule für Musik und Theater), where he became a master student of the organ teacher Heinz Wunderlich.

As a composer of music for more than 20 films, he has worked closely the film directors Peter Lilienthal, Doris Dörrie, Jan Schütte and Tevfik Başer.

Apart from his compositions for film, he has also composed other works, usually combining religious lyrics with modern music, in particular jazz.