1981 Grand Prix motorcycle racing season
- 3.1 Race Results
- 3.2 Drivers' Championship
- 3.3 Constructors' Championship
- 4.1 Race Results
- 4.2 Drivers' Championship
- 4.3 Constructors' Championship
- 5.1 Race Results
- 5.2 Drivers' Championship
- 5.3 Constructors' Championship
- 6.1 Race Results
- 6.2 Drivers' Championship
- 6.3 Constructors' Championship
- 7.1 Race Results
- 7.2 Drivers' Championship
- 7.3 Constructors' Championship
The motorcycle world championship 1981 season was the 33rd in the history of the FIM motorcycle road racing World Championship.
³ In the classes up to 500 cm were eleven in classes up to 350 cc and 50 cc eight discharged ten races in the classes up to 250 cc and 125 cc to twelve and the sidecars.
Scoring
In the evaluation all obtained results came.
500 cc class
Race Results
Drivers' championship
Constructors' Championship
The constructors' title was awarded to Suzuki.
350 cc class
Race Results
Drivers' championship
Constructors' Championship
The constructors' title was awarded to Kawasaki.
250 cc class
Race Results
Drivers' championship
Constructors' Championship
The constructors' title was awarded to Kawasaki.
125 cc class
Race Results
Drivers' championship
Constructors' Championship
The constructors' title was awarded Minarelli.
50 cc class
Race Results
Drivers' championship
Constructors' Championship
The constructors' title Bultaco was granted.
Teams ( 500 cc )
Race Results
Drivers' championship
Constructors' Championship
The constructors' title was awarded to Yamaha.