| 3. Round | 25/08/2023 | Everton FC U21 | - | Brighton & Hove Albion U21 | 0:4 | ||||
| 4. Round | 01/09/2023 | Brighton & Hove Albion U21 | - | Nottingham Forest U21 | 1:0 | ||||
| 5. Round | 23/09/2023 | Brighton & Hove Albion U21 | - | Newcastle United U21 | 1:1 | ||||
| 6. Round | 29/09/2023 | Derby County U21 | - | Brighton & Hove Albion U21 | 2:3 |  |
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| 7. Round | 29/10/2023 | Arsenal FC U21 | - | Brighton & Hove Albion U21 | 6:3 | ||||
| 8. Round | 03/11/2023 | Brighton & Hove Albion U21 | - | Aston Villa U21 | 2:1 | ||||
| 12. Round | 26/01/2024 | Crystal Palace U21 | - | Brighton & Hove Albion U21 | 2:1 | ||||
| 14. Round | 19/02/2024 | Stoke City U21 | - | Brighton & Hove Albion U21 | 4:3 | ||||
| 15. Round | 01/03/2024 | Sunderland AFC U21 | - | Brighton & Hove Albion U21 | 1:1 | |
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| 16. Round | 08/03/2024 | Brighton & Hove Albion U21 | - | West Bromwich Albion U21 | 2:1 | |
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| 18. Round | 08/04/2024 | Manchester United U21 | - | Brighton & Hove Albion U21 | 1:1 | ||||
| 19. Round | 13/04/2024 | Brighton & Hove Albion U21 | - | Reading FC U21 | 0:3 | ||||
| 20. Round | 29/04/2024 | Wolverhampton Wanderers U21 | - | Brighton & Hove Albion U21 | 1:1 |
Ireland