John Stanley Marshall, better known as John Marshall (born 28 August 1941 in Isleworth, Middlesex), is an English drummer. He was a founding member of the jazz rock band Nucleus and has worked with various other jazz and rock bands and musicians, among them J.J. Jackson, Barney Kessel, Alexis Korner, Graham Collier, Michael Gibbs, Arthur Brown, Keith Tippett, Centipede, Jack Bruce, John McLaughlin, Soft Machine, Dick Morrissey, Hugh Hopper, Elton Dean, John Surman, Charlie Mariano, John Abercrombie, Arild Andersen, and Eberhard Weber's Colours.

Since 1999, he has worked with former Soft Machine co-musicians in several Soft Machine-related projects like SoftWhere, SoftWorks and Soft Machine Legacy.