Michael Roland Ratledge is a British musician. A part of the Canterbury scene, he was a founding member of Soft Machine. He was the last founding member to leave the group, doing so in 1976.

Soft Machine are a British rock band from Canterbury formed in mid-1966 by Mike Ratledge, Robert Wyatt, Kevin Ayers, Daevid Allen and Larry Nowlin. As a central band of the Canterbury scene, the group became one of the first British psychedelic acts and later moved into progressive and jazz rock, becoming a purely instrumental band in 1971. The band has undergone many line-up changes, with musicians such as Andy Summers, Hugh Hopper, Elton Dean, John Marshall, Karl Jenkins, Roy Babbington and Allan Holdsworth being members during the band's history. The current line-up consists of John Etheridge, Theo Travis, Fred Thelonious Baker and Asaf Sirkis.