1978 National League season
| League | National League |
|---|---|
| No. of competitors | 20 |
| Champions | Canterbury Crusaders |
| Knockout Cup | Eastbourne Eagles |
| Individual | Steve Koppe |
| Pairs | Ellesmere Port Gunners |
| Fours | Peterborough Panthers |
| Highest average | Tom Owen |
| Division/s above | 1978 British League |
The 1978 National League was contested as the second division of Speedway in the United Kingdom.