Siegfried Lowitz (22 September 1914 – 27 June 1999) was a German actor.

Born in Berlin, he played the Hauptkommissar Erwin Köster in the German television drama Der Alte.

Prior to his tenure as Hauptkommissar, he played a killer in the popular German police series Derrick.

He died at Munich in 1999.

This article about a German television actor is a stub.