| 1981 motorsport champions | |
| Previous: 1980 | Next: 1982 |
This list of 1981 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 article |
|---|---|---|
| World Sportscar Championship |  Bob Garretson | 1981 World Sportscar Championship |
Over 2000cc Makes:  Porsche | ||
Under 2000cc Makes:  Lancia | ||
| IMSA GT Championship | GTX:  Brian Redman | 1981 IMSA GT Championship |
| GTO: David Cowart | ||
| GTU: Lee Mueller | ||
| Australian Sports Sedan Championship |  Tony Edmonson | 1981 Australian Sports Sedan Championship |
| Australian Sports Car Championship | John Latham | 1981 Australian Sports Car Championship |
| Can-Am | Geoff Brabham | 1981 Can-Am season |
| Under 2-Litre: Jim Trueman | ||
| Series | Driver | Season article |
|---|---|---|
| NASCAR Winston Cup Series | Darrell Waltrip | 1981 NASCAR Winston Cup Series |
| Manufacturers: Buick | ||
| NASCAR Winston West Series | Roy Smith | 1981 NASCAR Winston West Series |
| ARCA Racing Series | Larry Moyer | 1981 ARCA Racing Series |
| Turismo Carretera (1980–1981) |  Antonio Aventín | 1980–1981 Turismo Carretera |
| Turismo Carretera (1981) | Roberto Mouras | 1981 Turismo Carretera |
| USAC Stock Car National Championship | Dean Roper | 1981 USAC Stock Car National Championship |
| Series | Driver | Season article |
|---|---|---|
| World Rally Championship |  Ari Vatanen | 1981 World Rally Championship |
| Co-Drivers: David Richards | ||
| Manufacturers: Talbot | ||
| Australian Rally Championship | Geoff Portman | 1981 Australian Rally Championship |
| Co-Drivers: Ross Runnalls | ||
| Series | Driver | Season article |
|---|---|---|
| Karting World Championship | Mike Wilson | |
| CIK-FIA Junior World Cup |  Michel Vacirca | |
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