| 29. Round | 27/01/2024 | Millwall FC | - | Preston North End | 1:1 |  |
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| 30. Round | 03/02/2024 | Hull City | - | Millwall FC | 1:0 | ||||
| 31. Round | 11/02/2024 | Coventry City | - | Millwall FC | 2:1 | ||||
| 34. Round | 24/02/2024 | Southampton FC | - | Millwall FC | 1:2 | ||||
| 35. Round | 02/03/2024 | Millwall FC | - | Watford FC | 1:0 | ||||
| 36. Round | 05/03/2024 | Blackburn Rovers | - | Millwall FC | 1:1 |  |
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| 37. Round | 09/03/2024 | Millwall FC | - | Birmingham City | 1:0 | ||||
| 38. Round | 17/03/2024 | Leeds United | - | Millwall FC | 2:0 | ||||
| 39. Round | 29/03/2024 | Millwall FC | - | West Bromwich Albion | 1:1 | ||||
| 40. Round | 01/04/2024 | Rotherham United | - | Millwall FC | 2:1 | ||||
| 41. Round | 06/04/2024 | Huddersfield Town | - | Millwall FC | 1:0 | ||||
| 42. Round | 09/04/2024 | Millwall FC | - | Leicester City | 1:0 | ||||
| 43. Round | 13/04/2024 | Millwall FC | - | Cardiff City | 3:1 | |
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| 44. Round | 20/04/2024 | Sunderland AFC | - | Millwall FC | 0:1 | |
Ireland
Nigeria