Falk Grieffenhagen (born 25 February 1969) is a German musician who is a member of the electronic/experimental pop band Kraftwerk. Grieffenhagen studied sound and video engineering in Düsseldorf, as well as saxophone, flute, clarinet and piano (Jazz) in Cologne, finishing in 2004. He has freelanced since 1996 as a musician composer, sound engineer, software developer for media and performance applications, lecturer for software development and visual media creator.