| 3. Round | 15/08/2023 | Grimsby Town | - | Salford City | 2:0 | ||||
| 4. Round | 19/08/2023 | Grimsby Town | - | Mansfield Town | 1:1 | ||||
| 5. Round | 26/08/2023 | Walsall FC | - | Grimsby Town | 1:1 | ||||
| 6. Round | 02/09/2023 | Grimsby Town | - | Gillingham FC | 2:0 |  |
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| 7. Round | 09/09/2023 | Bradford City | - | Grimsby Town | 1:1 | |
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| 8. Round | 16/09/2023 | Wrexham AFC | - | Grimsby Town | 3:0 | ||||
| 13. Round | 14/10/2023 | Grimsby Town | - | Accrington Stanley | 0:2 | ||||
| 14. Round | 21/10/2023 | Stockport County | - | Grimsby Town | 3:2 | ||||
| 15. Round | 24/10/2023 | Grimsby Town | - | Colchester United | 2:3 | ||||
| 16. Round | 28/10/2023 | Doncaster Rovers | - | Grimsby Town | 1:0 | ||||
| 18. Round | 18/11/2023 | Forest Green Rovers | - | Grimsby Town | 2:2 |
England