The 2020 Super GT Series was motor racing championship based in Japan for grand touring cars. The series is sanctioned by the Japan Automobile Federation (JAF) and run by the GT Association (GTA). It was the twenty-eighth season of the Japan Automobile Federation Super GT Championship which includes the All Japan Grand Touring Car Championship (JGTC) era and the sixteenth season the series to compete under the Super GT name. It was the thirty-eighth overall season of a JAF national sportscar championship dating back to the All Japan Sports Prototype Championship.