Michael Edward Mills is the bass guitar player of the band R.E.M. He was born on 17 December, 1958 in Orange County, California but moved with his family to Macon, Georgia in the early 60s. The son of a dramatic tenor and a piano teacher, he developed a love of music at an early age. He met and formed a band with drummer Bill Berry in high school. They met Peter Buck and Michael Stipe after starting at the University of Georgia in Athens.

Mike Mills is also a member of the band 'The Hindu Love Gods' alongside the other members of R.E.M. (minus Michael Stipe), with Warren Zevon on lead vocals. Only one self titled album by the group was ever released, in 1990.

"Mike Mills" is also the title of a song by the French electronic band Air in their CD, Talkie Walkie.