Karl Bartos (born 31 May 1952) is a German musician and composer. He was, between 1975 and 1990, along with Wolfgang Flür, an electronic percussionist in the electronic-music group Kraftwerk. He was originally recruited to play on its US "Autobahn" tour. In addition to his percussion playing, Bartos was credited with songwriting on the Man-Machine, Computer World, and Electric Café albums and sang one lead vocal on the latter.

Bartos, who was born in Berchtesgaden, Germany, left the group in August 1990, reportedly frustrated at the slow progress in the group's activities because of the increasingly perfectionist attitude of founding members Ralf Hütter and Florian Schneider.