Alan Thomson (born 3 May 1960) is a Scottish bassist and vocalist with many acts, including the late John Martyn.

Other collaborations in the 1980s included touring with Black Sabbath's Geezer Butler and recording with The Mighty Wah.

He has recorded with Dick Gaughan, Sally Barker, Maggie Reilly, Nigel H Seymour, Shonu Das, and Frank O'Hagan.

Thomson has also worked with Denny Laine[3] (2008–2009), toured and recorded with Rick Wakeman in both duo and band formats from 1989 to 2004, recorded and toured with Julia Fordham, Carol Decker, and guitarist Andy Summers, and has songwriting credits with Robert Palmer, John Martyn, Sally Barker, Rev Doc and The Congregation, The Backroom Boys and Then Came the Wheel.

He tours and records with Jacqui McShee's Pentangle (since 1997), John Jorgenson's Electric Band, Rev Doc and The Congregation, Then Came The Wheel, and with Martin Barre.