| 8. Round | 08/11/2003 | SC Paderborn 07 [Youth] | - | 1. FC Köln [Youth] | 0:3 | ||||
| 9. Round | 12/11/2003 | 1. FC Köln [Youth] | - | Viktoria Köln [Youth] | 5:1 |  |
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| 10. Round | 22/11/2003 | Rot-Weiss Essen [Youth] | - | 1. FC Köln [Youth] | 0:1 | ||||
| 11. Round | 30/11/2003 | 1. FC Köln [Youth] | - | Bayer Leverkusen [Youth] | 1:3 | ||||
| 12. Round | 07/12/2003 | VfL Bochum [Youth] | - | 1. FC Köln [Youth] | 0:0 | ||||
| 13. Round | 14/12/2003 | 1. FC Köln [Youth] | - | KFC Uerdingen 05 [Youth] | 2:0 | ||||
| 14. Round | 22/02/2004 | 1. FC Köln [Youth] | - | Alemannia Aachen [Youth] | 4:0 | ||||
| 17. Round | 14/03/2004 | 1. FC Köln [Youth] | - | Bor. Mönchengladbach [Youth] | 3:1 |  |
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| 18. Round | 20/03/2004 | SG Wattenscheid 09 [Youth] | - | 1. FC Köln [Youth] | 0:2 | ||||
| 15. Round | 25/03/2004 | Borussia Dortmund [Youth] | - | 1. FC Köln [Youth] | 4:0 |  |
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| 25. Round | 06/06/2004 | 1. FC Köln [Youth] | - | VfL Bochum [Youth] | 1:1 | |
Poland