The 2015 Autobacs Super GT Series was the twenty-third season of the Japan Automobile Federation Super GT Championship including the All Japan Grand Touring Car Championship (JGTC) era, and the eleventh season under the name Super GT. It marked the thirty-third season overall of a Japanese professional sportscar championship dating back to the All Japan Sports Prototype Championship. The season began on April 5 and ended on November 15, after 8 races.