| 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 season |
Constructors +2.0:  Porsche 2.0:  Lancia | ||
| IMSA GT Championship | GTX:  Brian Redman | 1981 IMSA GT Championship season |
| 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 |
| Series | Driver | Season article |
|---|---|---|
| NASCAR Grand National Series | Darrell Waltrip | 1981 NASCAR Winston Cup Series |
| Series | Driver | Season article |
|---|---|---|
| World Rally Championship |  Ari Vatanen | 1981 World Rally Championship season |
| Manufacturer: Talbot | ||
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