1966 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 season in 1966 was the 18th in the history of FIM motorcycle road racing World Championship.
³ In the class up to 500 cm were nine, ³ in classes up to 350 cc and 125 cc up to ten in the class up to 250 cc and twelve in the class up to 50 cm and held six races in the sidecars.
Scoring
- The number gewerteter runs was calculated with an even number of races held by halving this number and then added with one. With six races so four were included in the championship standings.
- If an odd number of races held, the number of runs was added to one and then halved. With seven races thus four were included in the ranking.
500 cc class
Race Results
Drivers' championship
( Points in brackets including void results )
Constructors' Championship
( Points in brackets including void results )
350 cc class
Race Results
Drivers' championship
( Points in brackets including void results )
Constructors' Championship
( Points in brackets including void results )
250 cc class
Race Results
Drivers' championship
( Points in brackets including void results )
Constructors' Championship
( Points in brackets including void results )
125 cc class
Race Results
Drivers' championship
( Points in brackets including void results )
Constructors' Championship
( Points in brackets including void results )
50 cc class
Race Results
Drivers' championship
( Points in brackets including void results )
Constructors' Championship
( Points in brackets including void results )
Teams ( 500 cc )
Race Results
Drivers' championship
( Points in brackets including void results )
Constructors' Championship
( Points in brackets including void results )