The 2023 British GT Championship (known for sponsorship reasons as the 2023 Intelligent Money British GT Championship) is the 31st British GT Championship, a sports car championship promoted by the SRO Motorsports Group. The season began on 8 April at Oulton Park and will end on 22 October at Donington Park.
The calendar was unveiled on 29 July 2022. In a change from the 2022 schedule, the annual overseas round at Spa was moved to Portimão.
Bold indicates overall winner for each car class (GT3 and GT4).
Points were awarded as follows: