- Source: 1981 Finnish motorcycle Grand Prix
- 1981 Finnish motorcycle Grand Prix
- Finnish motorcycle Grand Prix
- 1981 Grand Prix motorcycle racing season
- San Marino Grand Prix
- 1980 Finnish motorcycle Grand Prix
- 1980 Grand Prix motorcycle racing season
- German motorcycle Grand Prix
- 1981 British motorcycle Grand Prix
- 1982 Grand Prix motorcycle racing season
- 1981 Swedish motorcycle Grand Prix
The 1981 Finnish motorcycle Grand Prix was the twelfth round of the 1981 Grand Prix motorcycle racing season. It took place on the weekend of 7–9 August 1981 at the Imatra Circuit.