The 2023 Formula Regional Japanese Championship was a multi-event, Formula Regional open-wheel single seater motor racing championship held in Japan. The drivers competed in Formula Regional cars that conformed to the FIA Formula Regional regulations for the championship. This was the fourth season of the series, promoted by K2 Planet, and the 45th overall season of an FIA ladder series (dating to the 1979 Japanese Formula 3 Championship).[1]
The season started on 1 April at Fuji Speedway and ran over six weekends until 26 November.[2]
Sota Ogawa, driving for Bionic Jack Racing, won the Drivers' Championship, while Rn-Sports driver Yoshitsugu Kondo was victorious in the Masters' Class. Sutekina Racing Team won the Teams' Championship.