| 12. Round | 08/10/2004 | Northampton Town | - | Grimsby Town | 0:1 | ||||
| 13. Round | 16/10/2004 | Grimsby Town | - | Bristol Rovers | 0:0 | ||||
| 14. Round | 19/10/2004 | Shrewsbury Town | - | Grimsby Town | 1:1 | ||||
| 15. Round | 23/10/2004 | Chester City | - | Grimsby Town | 2:1 | ||||
| 16. Round | 30/10/2004 | Grimsby Town | - | Swansea City | 1:1 |  |
 |
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| 17. Round | 06/11/2004 | Scunthorpe United | - | Grimsby Town | 2:0 | |
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| 18. Round | 20/11/2004 | Grimsby Town | - | Kidderminster Harriers | 2:1 | ||||
| 19. Round | 26/11/2004 | Southend United | - | Grimsby Town | 1:1 | ||||
| 20. Round | 07/12/2004 | Grimsby Town | - | Notts County | 3:2 | ||||
| 21. Round | 11/12/2004 | Yeovil Town | - | Grimsby Town | 2:1 | ||||
| 22. Round | 17/12/2004 | Grimsby Town | - | Oxford United | 1:1 | |
Scotland