| Competition | British League |
| Season | 1973 |
| No. of competitors | 18 |
| Champion | Reading Racers |
The 1973 British Speedway League was the ninth season of the highest tier of motorcycle speedway in Great Britain. Glasgow Tigers relocated to become Coatbridge Tigers. The Reading Racers won their first title.
| Team | PL | W | D | L | Pts |
| Reading Racers | 34 | 25 | 1 | 8 | 51 |
| Sheffield Tigers | 34 | 22 | 3 | 9 | 47 |
| King's Lynn Stars | 34 | 20 | 3 | 11 | 43 |
| Leicester Lions | 34 | 21 | 0 | 13 | 42 |
| Ipswich Witches | 34 | 19 | 2 | 12 | 41 |
| Belle Vue Aces | 34 | 19 | 1 | 14 | 39 |
| Wolverhampton Wolves | 34 | 18 | 1 | 15 | 37 |
| Exeter Falcons | 34 | 16 | 3 | 15 | 35 |
| Halifax Dukes | 34 | 16 | 2 | 16 | 34 |
| Newport Wasps | 34 | 16 | 0 | 18 | 32 |
| Oxford Rebels | 34 | 14 | 2 | 18 | 30 |
| Wimbledon Dons | 34 | 14 | 1 | 19 | 29 |
| Swindon Robins | 34 | 13 | 3 | 18 | 29 |
| Poole Pirates | 34 | 13 | 2 | 19 | 28 |
| Coventry Bees | 34 | 13 | 0 | 21 | 26 |
| Hackney Hawks | 34 | 11 | 4 | 19 | 26 |
| Coatbridge Tigers | 34 | 12 | 1 | 21 | 25 |
| Cradley United | 34 | 7 | 4 | 23 | 18 |
M = Matches; W = Wins; D = Draws; L = Losses; Pts = Total Points
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