Michael or Mike Keller may refer to: Michael Keller (designer) (born 1963), German designer Michael Keller (filmmaker), American filmmaker Mike Keller (born 1949), American football player Michael Keller (bishop) (1896–1961), bishop of the Roman Catholic Diocese of Münster Michael Keller (footballer), footballer for Zug 94 Michael Keller (chess composer) (born 1949), German International Grandmaster for chess compositions Michael Keller, director of Long Now Foundation Mike Keller, guitarist with Letters from the Fire