| Competition | National League Division One |
| Season | 1947 |
| No. of competitors | 7 |
| Champion | Wembley Lions |
The 1947 National League Division One was the second post-war season of the highest tier of motorcycle speedway in Great Britain. Harringay Racers rejoined the league. Wembley Lions retained the title.
| Team | PL | W | D | L | Pts |
| Wembley Lions | 24 | 19 | 0 | 5 | 38 |
| Belle Vue Aces | 24 | 15 | 1 | 8 | 31 |
| Wimbledon Dons | 24 | 13 | 1 | 10 | 27 |
| Bradford Boomerangs | 24 | 10 | 1 | 13 | 21 |
| New Cross Rangers | 24 | 10 | 0 | 14 | 20 |
| West Ham Hammers | 24 | 8 | 0 | 16 | 16 |
| Harringay Racers | 24 | 7 | 1 | 16 | 15 |
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