| 17. Round | 13/01/2024 | SC Freiburg | - | 1. FC Union Berlin | 0:0 | ||||
| 13. Round | 24/01/2024 | Bayern München | - | 1. FC Union Berlin | 1:0 |  |
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| 19. Round | 28/01/2024 | 1. FC Union Berlin | - | SV Darmstadt 98 | 1:0 | |
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| 20. Round | 04/02/2024 | RB Leipzig | - | 1. FC Union Berlin | 2:0 | ||||
| 18. Round | 07/02/2024 | 1. FSV Mainz 05 | - | 1. FC Union Berlin | 1:1 | |
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| 22. Round | 17/02/2024 | 1899 Hoffenheim | - | 1. FC Union Berlin | 0:1 | ||||
| 23. Round | 24/02/2024 | 1. FC Union Berlin | - | 1. FC Heidenheim 1846 | 2:2 | ||||
| 24. Round | 02/03/2024 | 1. FC Union Berlin | - | Borussia Dortmund | 0:2 | ||||
| 25. Round | 08/03/2024 | VfB Stuttgart | - | 1. FC Union Berlin | 2:0 | ||||
| 26. Round | 16/03/2024 | 1. FC Union Berlin | - | Werder Bremen | 2:1 | |
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| 27. Round | 30/03/2024 | Eintracht Frankfurt | - | 1. FC Union Berlin | 0:0 | ||||
| 28. Round | 06/04/2024 | 1. FC Union Berlin | - | Bayer Leverkusen | 0:1 | ||||
| 29. Round | 12/04/2024 | FC Augsburg | - | 1. FC Union Berlin | 2:0 | ||||
| 30. Round | 20/04/2024 | 1. FC Union Berlin | - | Bayern München | 1:5 | ||||
| 31. Round | 28/04/2024 | Bor. Mönchengladbach | - | 1. FC Union Berlin | 0:0 | |
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| 32. Round | 05/05/2024 | 1. FC Union Berlin | - | VfL Bochum | 3:4 |
Germany