Grands Prix
| Round | Race | Location | 50cc winner | 125cc winner | 250cc winner | 350cc winner | 500cc winner | Report |
|---|---|---|---|---|---|---|---|---|
| 1 | French Grand Prix | Paul Ricard | Kent Andersson | Johnny Cecotto | Johnny Cecotto | Giacomo Agostini | Report | |
| 2 | Spanish Grand Prix | Jarama | Angel Nieto | Paolo Pileri | Walter Villa | Giacomo Agostini | Report | |
| 3 | Austrian Grand Prix | Salzburgring | Paolo Pileri | Hideo Kanaya | Hideo Kanaya | Report | ||
| 4 | German Grand Prix | Hockenheimring | Angel Nieto | Paolo Pileri | Walter Villa | Johnny Cecotto | Giacomo Agostini | Report |
| 5 | Nations Grand Prix | Imola | Angel Nieto | Paolo Pileri | Walter Villa | Johnny Cecotto | Giacomo Agostini | Report |
| 6 | Isle of Man TT | Snaefell Mountain | Chas Mortimer | Charlie Williams | Mick Grant | Report | ||
| 7 | Dutch TT | Assen | Angel Nieto | Paolo Pileri | Walter Villa | Dieter Braun | Barry Sheene | Report |
| 8 | Belgian Grand Prix | Spa | Julien van Zeebroeck | Paolo Pileri | Johnny Cecotto | Phil Read | Report | |
| 9 | Swedish Grand Prix | Anderstorp | Eugenio Lazzarini | Paolo Pileri | Walter Villa | Barry Sheene | Report | |
| 10 | Finnish Grand Prix | Imatra | Angel Nieto | Michel Rougerie | Johnny Cecotto | Giacomo Agostini | Report | |
| 11 | Czechoslovakian Grand Prix | Brno | Leif Gustafsson | Michel Rougerie | Otello Buscherini | Phil Read | Report | |
| 12 | Yugoslavian Grand Prix | Opatija | Angel Nieto | Dieter Braun | Dieter Braun | Pentti Korhonen | Report |
Read more about this topic: 1975 Grand Prix Motorcycle Racing Season