2025 Super GT Series

Sho Tsuboi & Kenta Yamashita was the GT500 driver's champion, driving for TGR Team au TOM'S, who were the GT500 teams' champions. Togo Suganami & Naoya Gamou were the GT300 driver's champions, driving for K2 R&D LEON Racing, who were the GT300 teams' champions.
The 2025 Super GT Series was the last season for two-time GT500 champion Tsugio Matsuda and seven-time race winner Takuya Izawa.

The 2025 Autobacs Super GT Series was a motor racing championship based in Japan for grand touring cars. The series was sanctioned by the Japan Automobile Federation (JAF) and ran by the GT Association (GTA). It was the thirty-third season of the Super GT Series, which includes the All Japan Grand Touring Car Championship era, and the twenty-first season under the Super GT name. It was also the forty-third overall season of a JAF national sports car championship dating back to the All Japan Endurance/Sports Prototype Championship.

Sho Tsuboi and Kenta Yamashita of TGR Team au TOM'S entered the season as the defending champions of the GT500 class. Takashi Kogure and Yuya Motojima of JLOC entered the season as the defending champions of the GT300 class.