The 2003–04 British National League season was the eighth season of the British National League, the second level of ice hockey in Great Britain. Seven teams participated in the league, and the Guildford Flames won the championship.
| Club | GP | W | OTW | T | OTL | L | Goals | Pts | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 36 | 21 | 2 | 3 | 3 | 7 | 135:97 | 52 | ||
| 2. | 36 | 20 | 4 | 0 | 3 | 9 | 136:88 | 51 | ||
| 3. | 36 | 16 | 3 | 2 | 2 | 13 | 143:117 | 42 | ||
| 4. | 36 | 11 | 5 | 6 | 1 | 13 | 116:103 | 39 | ||
| 5. | 36 | 14 | 3 | 1 | 2 | 16 | 109:135 | 37 | ||
| 6. | 36 | 13 | 1 | 3 | 4 | 15 | 112:140 | 35 | ||
| 7. | 36 | 3 | 1 | 3 | 4 | 25 | 71:142 | 15 |
| Club | GP | W | T | L | Goals | Pts | ||
|---|---|---|---|---|---|---|---|---|
| 1. | 10 | 6 | 2 | 2 | 33:16 | 14 | ||
| 2. | 10 | 6 | 1 | 3 | 31:22 | 13 | ||
| 3. | 10 | 5 | 1 | 4 | 28:25 | 11 | ||
| 4. | 10 | 4 | 1 | 5 | 31:42 | 9 | ||
| 5. | 10 | 3 | 1 | 6 | 21:31 | 7 | ||
| 6. | 10 | 2 | 2 | 6 | 29:37 | 6 |