2023 Speedway Grand Prix of Great Britain

The 2023 FIM Speedway Grand Prix of Great Britain was the eighth round of the 2023 Speedway Grand Prix season (the World Championship of speedway). It took place on 2 September at the Principality Stadium in Cardiff, Wales. It was the 27th Speedway Grand Prix of Great Britain.

The event was won by Martin Vaculík (his 7th career Grand Prix win).