This list of 1970 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.
| Series | Driver | Season |
|---|---|---|
| International Championship for Makes | Porsche | 1970 World Sportscar Championship |
| International Grand Touring Trophy | Porsche | |
| Canadian American Challenge Cup |  Denny Hulme | 1970 Can-Am season |
| Australian Sports Car Championship |  Peter Woodward | 1970 Australian Sports Car Championship |
| Formula F100 |  Ray Allen | 1970 Formula F100 season |
| Series | Driver | Season article |
|---|---|---|
| NASCAR Grand National Series |  Bobby Isaac | 1970 NASCAR Grand National Series |
| Manufacturers: Dodge | ||
| NASCAR Winston West Series | Ray Elder | 1970 NASCAR Winston West Series |
| ARCA Racing Series | Ramo Stott | 1970 ARCA Racing Series |
| Turismo Carretera |  Rubén Luis di Palma | 1970 Turismo Carretera |
| USAC Stock Car National Championship | Roger McCluskey | 1970 USAC Stock Car National Championship |
| Series | Driver | Season article |
|---|---|---|
| Australian Rally Championship | Bob Watson | 1970 Australian Rally Championship |
| Co-Drivers: Jim McAuliffe | ||
| Series | Rider | Season |
|---|---|---|
| FIM Motocross World Championship | 500cc:  Bengt Åberg | 1970 FIM Motocross World Championship |
250cc:  Joël Robert | ||
| Trans-AMA Motocross Series | Dave Nicoll | 1970 Trans-AMA motocross series |
| Series | Driver | Season article |
|---|---|---|
| Karting World Championship | François Goldstein | |
| Junior: Alan Lane | ||
| Series | Champion | Refer |
|---|---|---|
| NHRA Drag Racing Series | Top Fuel: Ronnie Martin | 1970 NHRA Drag Racing Series |
| Funny Car: Gene Snow | ||
| Pro Stock: Ronnie Sox | ||
Jean-Pierre Jaussaud
Giovanni Salvati