Ken Duken (born 17 April 1979) is a German actor.
Duken was born in Heidelberg, Germany. He started to learn acting from his stage actress mother Christina Loeb. Later he took courses by James Reynolds and Bruce McDonald, but he never attended drama school.
Before starting his career on television in 1997 Ken acted throughout different stage plays, like "Visit from an old Lady". He played the unnamed German soldier wearing a card saying Mata Hari in the Inglourious Basterds film, directed by Quentin Tarantino.