| 31. Round | 03/02/2024 | Accrington Stanley | - | Grimsby Town | 0:0 | ||||
| 32. Round | 10/02/2024 | Grimsby Town | - | Stockport County | 1:3 |  |
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| 34. Round | 17/02/2024 | Grimsby Town | - | Doncaster Rovers | 1:5 | |
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| 39. Round | 16/03/2024 | Gillingham FC | - | Grimsby Town | 1:1 | ||||
| 42. Round | 01/04/2024 | Grimsby Town | - | Bradford City | 1:1 | ||||
| 43. Round | 06/04/2024 | Grimsby Town | - | Newport County | 1:0 | ||||
| 29. Round | 09/04/2024 | Harrogate Town | - | Grimsby Town | 1:0 | ||||
| 44. Round | 13/04/2024 | Crewe Alexandra | - | Grimsby Town | 0:3 | ||||
| 33. Round | 16/04/2024 | Colchester United | - | Grimsby Town | 2:0 | ||||
| 45. Round | 20/04/2024 | Grimsby Town | - | Swindon Town | 2:0 |  |
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| 46. Round | 27/04/2024 | Crawley Town | - | Grimsby Town | 2:0 |
Scotland