List of 1981 motorsport champions
| 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.
Drag racing
| Series | Champion | Refer |
|---|---|---|
| NHRA Winston Drag Racing Series | Top Fuel:  Jeb Allen
|
1981 NHRA Winston Drag Racing Series |
| Funny Car: Raymond Beadle
| ||
| Pro Stock: Lee Shepherd
|
Karting
| Series | Driver | Season article |
|---|---|---|
| Karting World Championship |  Mike Wilson
|
|
| CIK-FIA Junior World Cup |  Michel Vacirca
|
|
| Karting European Championship | ICA: Peter De Bruijn
|
|
FC:  Gianfranco Baroni
| ||
| FC-2: Gianfranco Baroni
|
Motorcycle racing
Open wheel racing
Rallying
Sports car and GT
| 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
|
Stock car racing
| 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 |