Martin Robert Turner (born 1 October 1947) is an English musician best known for his time as the bass guitarist, lead vocalist and a founding member of the rock band, Wishbone Ash.

The frontman never appeared and Turner was replaced by John Wetton, who was formerly with King Crimson, Uriah Heep, Family and Roxy Music.

In 1987 the original quartet reformed, and Turner produced and performed on the albums Nouveau Calls, Here to Hear and Strange Affair as well as undertaking worldwide touring with the band between 1988–1991.

In July 2012 Martin Turner published his autobiography No Easy Road – My Life and Times With Wishbone Ash and Beyond, through his website.

He now regularly performs with a white model of the Gibson Thunderbird which he bought from Peter Overend Watts of Mott the Hoople.