The 2019 Super GT Series was a 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-seventh season of the Japan Automobile Federation Super GT Championship which includes the All Japan Grand Touring Car Championship (JGTC) era and the fifteenth season the series has competed under the Super GT name. It was the thirty-seventh overall season of a national JAF sportscar championship dating back to the All Japan Sports Prototype Championship. The season began on April 14 and ended on November 24, after 8 championship races & 2 non-championship races.

Super GT is a sports car racing series that began in 1993. Launched as the Zen Nihon GT Senshuken (全日本GT選手権), generally referred to as the All Japan Grand Touring Car Championship (JGTC), the series was renamed to Super GT in 2005. It is the top level of sports car racing in Japan.