1978 British Speedway Championship
The 1978 British Speedway Championship was the 18th edition of the British Speedway Championship. The Final took place on 16 August at Brandon Stadium in Coventry, England. The Championship was won by Michael Lee.
The British Under 21 Championship was won by Phil Collins.
British Final
British Under 21 final
| Pos | Rider | Pts |
| 1 | Phil Collins | 15 |
| 2 | Ian Gledhill | 10+3 |
| 3 | Bob Garrad | 10+2 |
| 4 | Melvyn Taylor | 10+1 |
| 5 | Steve Naylor | 9 |
| 6 | John Hack | 9 |
| 7 | Pip Lamb | 9 |
| 8 | Brendan Shilleto | 8 |
| 9 | Nigel Flatman | 8 |
| 10 | Kenny Carter | 7 |
| 11 | Louis Carr | 5 |
| 12 | Paul Woods | 5 |
| 13 | Neil Leeks | 5 |
| 14 | Sean Willmott | 5 |
| 15 | Derek Harrison | 3 |
| 16 | Mike Spink | 2 |
| 17 | Dave Shepherd | 0 |