| Grand Prix: | Belgian |
| Flag: | Belgium |
| Official Name: | Grand Prix de Belgique des Motos/Grote Prijs van Belgie voor Moto's[1] [2] [3] |
| Location: | Circuit de Spa-Francorchamps |
| Course Mi: | 8.761[4] |
| Course Km: | 14.100 |
| Race No: | 8 |
| Season No: | 12 |
| Date: | 6 July |
| Year: | 1975 |
| Pole Rider 500: | Barry Sheene |
| Pole Rider 500 Country: | GBR |
| Pole Time 500: | 3:52.200 |
| Fast Rider 500 Country: | GBR |
| Fast Time 500: | 3:52.200 |
| First Rider 500: | Phil Read |
| First Rider 500 Country: | GBR |
| Second Rider 500: | John Newbold |
| Second Rider 500 Country: | GBR |
| Third Rider 500: | Jack Findlay |
| Third Rider 500 Country: | AUS |
| Pole Rider 350: | None |
| Fast Rider 350: | None |
| First Rider 350: | None |
| Second Rider 350: | None |
| Third Rider 350: | None |
| Pole Rider 250: | Unknown |
| Fast Rider 250: | Unknown |
| First Rider 250 Country: | VEN |
| Second Rider 250: | Michel Rougerie |
| Second Rider 250 Country: | FRA |
| Third Rider 250: | Walter Villa |
| Third Rider 250 Country: | ITA |
| Pole Rider 125: | Unknown |
| Fast Rider 125: | Unknown |
| First Rider 125: | Paolo Pileri |
| First Rider 125 Country: | ITA |
| Second Rider 125: | Pier Paolo Bianchi |
| Second Rider 125 Country: | ITA |
| Third Rider 125: | Kent Andersson |
| Third Rider 125 Country: | SWE |
| Pole Rider 50: | Unknown |
| Fast Rider 50: | Unknown |
| First Rider 50: | Julien van Zeebroeck |
| First Rider 50 Country: | BEL |
| Second Rider 50: | Ángel Nieto |
| Second Rider 50 Country: | SPA |
| Second Rider 50 Country Flag Suffix: | 1945 |
| Third Rider 50: | Eugenio Lazzarini |
| Third Rider 50 Country: | ITA |
The 1975 Belgian motorcycle Grand Prix was the eighth round of the 1975 Grand Prix motorcycle racing season. It took place on the weekend of 4–6 July 1975 at the Circuit de Spa-Francorchamps.
| Pos. | Rider | Team | Manufacturer | Time/Retired | Points | ||||
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Phil Read | MV Agusta | MV Agusta | 47'21.100 | 15 | ||||
| 2 | John Newbold | Suzuki | +1'08.600 | 12 | |||||
| 3 |  Jack Findlay | Yamaha | +1'55.000 | 10 | |||||
| 4 | Alex George | Yamaha | +2'21.900 | 8 | |||||
| 5 | John Williams | Yamaha | +2'24.000 | 6 | |||||
| 6 |  Christian Leon | König Motorenbau | König | +3'12.600 | 5 | ||||
| 7 | Alan North | Harley-Davidson | +3'25.200 | 4 | |||||
| 8 |  Francois Hollebecq | Yamaha | +3'35.800 | 3 | |||||
| 9 | Thierry Tchernine | Yamaha | +3'49.400 | 2 | |||||
| 10 | Jean-François Baldé | Yamaha | +3'50.500 | 1 | |||||
| 11 | Nico van der Zanden | Yamaha | +1 lap | ||||||
| Ret | Barry Sheene | Suzuki Motor Company | Suzuki | Retired | |||||
| Ret | Dieter Braun | Mitsui Maschinen | Yamaha | Retired | |||||
| Ret | Helmut Kassner | Yamaha | Retired | ||||||
| Ret | John Dodds | Yamaha | Retired | ||||||
| Ret | Horst Lahfeld | König | Retired | ||||||
| Ret | Chas Mortimer | Sarome Racing | Yamaha | Retired | |||||
| Ret |  Tony Rutter | Yamaha | Retired | ||||||
| Ret | Alex George | Yamaha | Retired | ||||||
| Ret | Patrick Pons | Equipe Sonauto BP Gauloises | Yamaha | Retired | |||||
| Ret | Víctor Palomo | Yamaha | Retired | ||||||
| Ret |  Pentti Korhonen | Yamaha | Retired | ||||||
| Ret | Teuvo Länsivuori | Suzuki Motor Company | Suzuki | Retired | |||||
| Ret | Philippe Chaltin | Yamaha | Retired | ||||||
| Ret |  Giacomo Agostini | Yamaha Motor NV | Yamaha | Retired | |||||
| Ret | Tom Herron | Yamaha | Retired | ||||||
| Ret | Mick Grant | Boyer Team Kawasaki | Kawasaki | Retired | |||||
| Ret | Gianfranco Bonera | MV Agusta | MV Agusta | Retired | |||||
| Ret | John Weeden | Yamaha | Retired | ||||||
| Ret | Bernard Fau | Yamaha | Retired | ||||||
| Ret | Olivier Chevallier | Yamaha | Retired | ||||||
| Ret | Philippe Bouzanne | Yamaha | Retired | ||||||
| Sources: [5] [6] | |||||||||