1981 British Speedway Championship
The 1981 British Speedway Championship was the 21st edition of the British Speedway Championship. The Final took place on 3 June at Brandon in Coventry, England. The Championship was won by Steve Bastable, who beat Kenny Carter and John Louis in a run-off for the title. The top eight riders qualified for the next stage of the World Championship, the 1981 Overseas Final.
British Final
British Under 21 final
Rob Lightfoot won the British Speedway Under 21 Championship. The final was held at Kingsmead Stadium on 4 July.| Pos. | Rider | Points |
| 1 | Rob Lightfoot | 14 |
| 2 | Peter Carr | 13 |
| 3 | Neil Evitts | 11 |
| 4 | Martin Hewlett | 10 |
| 5 | Charlie McKinna | 10 |
| 6 | Dennis Mallett | 10 |
| 7 | Simon Wigg | 9 |
| 8 | Andy Hibbs | 7 |
| 9 | Wayne Jackson | 7 |
| 10 | Martin Dixon | 6 |
| 11 | Paul Evitts | 5 |
| 12 | Paul Stead | 5 |
| 13 | Jamie Luckhurst | 4 |
| 14 | Andy Buck | 3 |
| 15 | Dave Mullett | 3 |
| 16 | Peter Tarrant | 2 |
| 17 | Rob Tilbury | 1 |
| 18 | Nigel Sparshott | 0 |