1947 Speedway National League
| League | National League Division One |
|---|---|
| No. of competitors | 7 |
| Champions | Wembley Lions |
| National Trophy | Belle Vue Aces |
| British Speedway Cup | Wembley Lions |
| Riders' champion | Jack Parker |
| London Cup | New Cross Rangers |
| Highest average | Vic Duggan |
| Division/s below | National League (Div 2) National League (Div 3) |
The 1947 National League Division One was the 13th season of speedway in the United Kingdom and the second post-war season of the highest tier of motorcycle speedway in Great Britain.