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The 1997 All Japan Grand Touring Car Championship was the fifth season of the All-Japan GT Championship, now known as the Super GT Series, and the 15th season of top-level Japanese sports car racing dating back to the formation of the previous All-Japan Endurance/Sports Prototype Championship.
Michael Krumm and Pedro de la Rosa won the GT500 class championship for Toyota Castrol Team in the #36 Castrol TOM's Supra. Hideo Fukuyama and Manabu Orido won the GT300 class championship for Racing Project Bandoh in the #19 Nissan Silvia.
The GT500 Drivers' Championship was decided on a tiebreaker for the first time in JGTC/Super GT history. The duo of De la Rosa and Krumm, and Toyota Team SARD driver Masami Kageyama each scored 67 points, with two victories, and one second place finish. But a third-place finish for De la Rosa and Krumm broke the tie, giving them the championship for the Toyota Castrol Team. De la Rosa became the first driver to win both the GT500 Drivers' Championship, and the Japanese Top Formula Championship in Formula Nippon (now Super Formula), in the same calendar year.
For the second year in a row, the GT Association (GTA) held a non-championship all-star race at the end of the year. The race was held at the new Twin Ring Motegi circuit which had opened earlier in the year. Instead of using the 4.801-kilometre road course, the series raced around the 2.414 km superspeedway oval with cone chicanes installed around the banked corners. The circuit, now known as Mobility Resort Motegi, staged its first championship race the following year and has remained on the JGTC/Super GT schedule ever since.