List of 1975 motorsport champions
| 1975 motorsport champions | |
| Previous: 1974 | Next: 1976 |
This list of 1975 motorsport champions is a list of national or international auto racing series with a Championship decided by the points or positions earned by a driver from multiple races.
Drag racing
| Series | Champion | Refer |
|---|---|---|
| NHRA Winston Drag Racing Series | Top Fuel:  Don Garlits
|
1975 NHRA Winston Drag Racing Series |
| Funny Car: Don Prudhomme
| ||
| Pro Stock: Bob Glidden
|
Karting
| Series | Driver | Season article |
|---|---|---|
| Karting World Championship | .svg.png){kind=small} François Goldstein
|
|
Junior: .svg.png){kind=small} Adrian Wepfer
| ||
| Karting European Championship | 100cc:  Gabriele Gorini
|
|
FC:  Ben van Velzen
|
Motorcycle racing
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Motocross
| Series | Driver | Season article |
|---|---|---|
| FIM Motocross World Championship | 500cc: Roger De Coster
|
1975 FIM Motocross World Championship |
| 250cc: Harry Everts
| ||
| 125cc: Gaston Rahier
|
Open wheel racing
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Rallying
Sports car and GT
| Series | Driver | Season article |
|---|---|---|
| World Sportscar Championship | Class S: Alfa Romeo
|
1975 World Sportscar Championship |
Class GT:  Porsche
| ||
| Australian Sports Car Championship | .svg.png){kind=small} Garrie Cooper
|
1975 Australian Sports Car Championship |
| IMSA GT Championship | Peter Gregg
|
1975 IMSA GT Championship |
Stock car racing
| Series | Driver | Season article |
|---|---|---|
| NASCAR Winston Cup Series | Richard Petty
|
1975 NASCAR Winston Cup Series |
| Manufacturers: Dodge
| ||
| NASCAR Winston West Series | Ray Elder
|
1975 NASCAR Winston West Series |
| ARCA Racing Series | Dave Dayton
|
1975 ARCA Racing Series |
| Turismo Carretera |  Héctor Gradassi
|
1975 Turismo Carretera |
| USAC Stock Car National Championship | Ramo Stott
|
1975 USAC Stock Car National Championship |
Touring car
| Series | Driver | Season article |
|---|---|---|
| European Touring Car Championship | Siegfried Müller Sr. Alain Peltier
|
1975 European Touring Car Championship |
| Australian Manufacturers' Championship | Holden
|
1975 Australian Manufacturers' Championship |
| Australian Touring Car Championship | Colin Bond
|
1975 Australian Touring Car Championship |
| British Saloon Car Championship |  Andy Rouse
|
1975 British Saloon Car Championship |
| Manufacturers: Chevrolet Camaro Manufacturers: Triumph Dolomite
| ||
| Deutsche Rennsport Meisterschaft | Hans Heyer
|
1975 Deutsche Rennsport Meisterschaft |