1934 Speedway National League
| League | National League Division One |
|---|---|
| No. of competitors | 9 |
| Champions | Belle Vue Aces |
| National Trophy | Belle Vue Aces |
| A.C.U Cup | Belle Vue Aces |
| London Cup | New Cross Lambs |
| Highest average | Eric Langton |
The 1934 National League Division One was the sixth season of motorcycle speedway in Great Britain. It was also the first time that a second division/tier of racing was introduced following the creation of a reserves league.