1980 British motorcycle Grand Prix

The 1980 British motorcycle Grand Prix was the eighth round of the 1980 Grand Prix motorcycle racing season. It took place on the weekend of 8–10 August 1980 at the Silverstone Circuit.

  1980 British Grand Prix

Race details
Race 8 of 10 races in the 1980 Grand Prix motorcycle racing season
Date	10 August 1980
Official name	Marlboro British Grand Prix[1][2]
Location	Silverstone Circuit
Course	Permanent racing facility 4.710 km (2.927 mi)
500 cc
Pole position Rider Kenny Roberts Time 1:30.710 Fastest lap Rider Kenny Roberts Time 1:30.700 Podium First Randy Mamola Second Kenny Roberts Third Marco Lucchinelli
350 cc
Pole position Rider Anton Mang Time 1:32.780 Fastest lap Rider Unknown Podium First Anton Mang Second Jon Ekerold Third Éric Saul
250 cc
Pole position Rider Anton Mang Time 1:35.190 Fastest lap Rider Unknown Podium First Kork Ballington Second Anton Mang Third Thierry Espié
125 cc
Pole position Rider Guy Bertin Time 1:41.230 Fastest lap Rider Unknown Podium First Loris Reggiani Second Bruno Kneubühler Third Pier Paolo Bianchi
50 cc
Pole position Rider No 50cc race was held Fastest lap Rider No 50cc race was held Podium First No 50cc race was held Second No 50cc race was held Third No 50cc race was held