Siegfried Strohbach (born 27 November 1929 in Schirgiswalde, Lusatia) is a German composer and conductor. He founded and directed choirs and the vocal ensemble Collegium Cantorum and is notable for the composition of choral music. He has retired as a conductor of major theaters of Lower Saxony and as a professor of the Musikhochschule Hannover, but as of 2011 is still active as a composer.