Daigo Saito (斎藤 太吾, Saitō Daigo, 7 March 1980, Saitama) is a Japanese professional drifting driver, currently competing in the D1 Grand Prix series for Fnatz Professional Garage and Formula DRIFT USA and Asia series for Achilles Radial. Saito holds the distinction of being the first driver to win the two drifting majors, D1GP in 2008 and Formula D in 2012.