| 1. Round | 26/07/2003 | NK Osijek | - | NK Inter Zaprešić | 3:2 |  |
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| 2. Round | 03/08/2003 | HNK Cibalia | - | NK Osijek | 3:2 | ||||
| 3. Round | 09/08/2003 | NK Osijek | - | NK Varteks | 3:1 | ||||
| 4. Round | 16/08/2003 | Dinamo Zagreb | - | NK Osijek | 4:0 | ||||
| 5. Round | 23/08/2003 | NK Osijek | - | NK Marsonia | 2:1 | ||||
| 6. Round | 30/08/2003 | HNK Rijeka | - | NK Osijek | 2:0 | ||||
| 7. Round | 13/09/2003 | NK Osijek | - | NK Zadar | 1:2 | ||||
| 8. Round | 20/09/2003 | NK Osijek | - | Slaven Belupo | 0:1 | ||||
| 9. Round | 28/09/2003 | Hajduk Split | - | NK Osijek | 2:0 | ||||
| 10. Round | 04/10/2003 | NK Osijek | - | NK Zagreb | 5:2 | ||||
| 12. Round | 25/10/2003 | NK Inter Zaprešić | - | NK Osijek | 1:1 | ||||
| 14. Round | 08/11/2003 | NK Varteks | - | NK Osijek | 1:1 |
Croatia