2006 Speedway Grand Prix of Great Britain

The 2006 Speedway Grand Prix of Great Britain was the fourth round of the 2006 Speedway Grand Prix season (the world championship). It took place on 3 June 2006 at the Millennium Stadium in Cardiff, Wales.

It was the 12th time that the Speedway Grand Prix of Great Britain had been held.

The Grand Prix was by the Australian rider Jason Crump (his 15th career Grand Prix win).