The 1975 British Grand Prix was a Formula One motor race held at Silverstone on 19 July 1975. It was race 10 in the 1975 Formula One season. This was the first race that used the traffic light system with coloured lights (red and green) at the start (system used until the 1995 Australian Grand Prix).

The results were overshadowed by a heavy hail storm from Lap 53, which caused three out of the top four cars (Jody Scheckter, James Hunt, and Mark Donohue), to aquaplane and crash in the same corner, bringing an early finish to the race, and a significant absence on the podium. A number of other cars crashed at the same corner as well, including Wilson Fittipaldi, Jochen Mass, and John Watson. The race results were finalised the lap after the lap most cars crashed, giving Brazilian Emerson Fittipaldi, who had been the race leader prior to the storm, a one lap win in his McLaren M23. Carlos Pace, who was one of the crashers in his Brabham BT44B was classified in second position with another of the crashers, Tyrrell 007 driver Jody Scheckter classified third.