| 1. Round | 09/08/2003 | Tranmere Rovers | - | Brentford FC | 4:1 | ||||
| 2. Round | 16/08/2003 | Brentford FC | - | Peterborough United | 0:3 | ||||
| 3. Round | 23/08/2003 | Wrexham AFC | - | Brentford FC | 1:0 | ||||
| 4. Round | 25/08/2003 | Brentford FC | - | Oldham Athletic | 2:1 | ||||
| 5. Round | 30/08/2003 | Port Vale FC | - | Brentford FC | 1:0 | ||||
| 6. Round | 06/09/2003 | Brentford FC | - | Plymouth Argyle | 1:3 | ||||
| 7. Round | 13/09/2003 | Rushden & Diamonds FC | - | Brentford FC | 0:1 | ||||
| 8. Round | 16/09/2003 | Brentford FC | - | Blackpool FC | 0:0 | ||||
| 10. Round | 27/09/2003 | Chesterfield FC | - | Brentford FC | 1:2 | ||||
| 11. Round | 30/09/2003 | Colchester United | - | Brentford FC | 1:1 |  |
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| 14. Round | 18/10/2003 | Brentford FC | - | Luton Town | 4:2 | ||||
| 19. Round | 22/11/2003 | Brentford FC | - | Grimsby Town | 1:3 | ||||
| 20. Round | 29/11/2003 | AFC Bournemouth | - | Brentford FC | 1:0 | |
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| 22. Round | 20/12/2003 | Brentford FC | - | Swindon Town | 0:2 | ||||
| 25. Round | 03/01/2004 | Oldham Athletic | - | Brentford FC | 1:1 | ||||
| 27. Round | 17/01/2004 | Peterborough United | - | Brentford FC | 0:0 | ||||
| 28. Round | 24/01/2004 | Brentford FC | - | Wrexham AFC | 0:1 |
England