| 1. Journée | 26.07.2003 | NK Osijek | - | NK Inter Zaprešić | 3:2 |  |
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| 2. Journée | 03.08.2003 | HNK Cibalia | - | NK Osijek | 3:2 | |
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| 3. Journée | 09.08.2003 | NK Osijek | - | NK Varteks | 3:1 | ||||
| 4. Journée | 16.08.2003 | Dinamo Zagreb | - | NK Osijek | 4:0 | ||||
| 5. Journée | 23.08.2003 | NK Osijek | - | NK Marsonia | 2:1 | ||||
| 6. Journée | 30.08.2003 | HNK Rijeka | - | NK Osijek | 2:0 | ||||
| 7. Journée | 13.09.2003 | NK Osijek | - | NK Zadar | 1:2 | ||||
| 9. Journée | 28.09.2003 | Hajduk Split | - | NK Osijek | 2:0 | |
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