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 drivers' champion of 2000 was Ryo Michigami driving the No. 16 Castrol Mugen Honda NSX, with Mugen x Dome Project winning the teams' championship. The GT300 class drivers' champion was the No. 26 Advan Team Taisan Jr Porsche 996 driven by Hideo Fukuyama.