The 2000 All Japan Grand Touring Car Championship was the eighth season of Japan Automobile Federation GT premiere racing. It was marked as well as the eighteenth season of a JAF-sanctioned sports car racing championship dating back to the All Japan Sports Prototype Championship. The GT500 class champion of 2000 was the #16 CastrolMugenHonda NSX team driven by Ryo Michigami and the GT300 class champion was the #26 Advan Team Taisan Jr Porsche 996 driven by Hideo Fukuyama.