Gary John Barden (born 27 August 1955, Royal Tunbridge Wells, England) is an English singer-songwriter, best known for his work with the Michael Schenker Group.

Barden was discovered by Schenker upon the guitarist's hearing a demo of Barden's previous band, Fraser Nash. Barden proceeded to appear on The Michael Schenker Group (1980), MSG (1981) and One Night at Budokan (1981) albums. He was asked to leave the group and was replaced by former Rainbow frontman Graham Bonnet. In the interim, Barden worked with Gary Moore on the demos of what would later become Moore's Corridors of Power album.