Grands Prix
| Round | Race | Location | 50cc winner | 125cc winner | 250cc winner | 350cc winner | 500cc winner | Report |
|---|---|---|---|---|---|---|---|---|
| 1 | Argentine Grand Prix | Buenos Aires | Angel Nieto | Jean-François Baldé | Jon Ekerold | Report | ||
| 2 | Austrian Grand Prix | Salzburgring | Angel Nieto | Patrick Fernandez | Randy Mamola | Report | ||
| 3 | German Grand Prix | Hockenheim | Stefan Dörflinger | Angel Nieto | Anton Mang | Anton Mang | Kenny Roberts | Report |
| 4 | Nations Grand Prix | Monza | Ricardo Tormo | Guy Bertin | Eric Saul | Jon Ekerold | Kenny Roberts | Report |
| 5 | French Grand Prix | Paul Ricard | Angel Nieto | Anton Mang | Marco Lucchinelli | Report | ||
| 6 | Spanish Grand Prix | Jarama | Ricardo Tormo | Angel Nieto | Anton Mang | Report | ||
| 7 | Yugoslavian Grand Prix | Rijeka | Ricardo Tormo | Loris Reggiani | Anton Mang | Randy Mamola | Report | |
| 8 | Dutch TT | Assen | Ricardo Tormo | Angel Nieto | Anton Mang | Anton Mang | Marco Lucchinelli | Report |
| 9 | Belgian Grand Prix | Spa | Ricardo Tormo | Anton Mang | Marco Lucchinelli | Report | ||
| 10 | San Marino Grand Prix | Imola | Ricardo Tormo | Loris Reggiani | Anton Mang | Marco Lucchinelli | Report | |
| 11 | British Grand Prix | Silverstone | Angel Nieto | Anton Mang | Anton Mang | Jack Middelburg | Report | |
| 12 | Finnish Grand Prix | Imatra | Angel Nieto | Anton Mang | Marco Lucchinelli | Report | ||
| 13 | Swedish Grand Prix | Anderstorp | Ricardo Tormo | Anton Mang | Barry Sheene | Report | ||
| 14 | Czechoslovakian Grand Prix | Brno | Theo Timmer | Anton Mang | Anton Mang | Report |
Read more about this topic: 1981 Grand Prix Motorcycle Racing Season