siegfried köhler (july 30, 1923 in freiburg im breisgau – september 12, 2017 in wiesbaden) was a german conductor and composer of classical music. he worked as general music director of opera houses such as hessisches staatstheater wiesbaden and the royal swedish opera. he conducted premieres of works by hans werner henze and volker david kirchner, among others, and revived rarely performed operas. he also composed music for the stage and taught at universities of music in cologne and saarbrücken.