| 16. Round | 26/11/2011 | NK Istra 1961 | - | NK Karlovac | 2:0 | ||||
| 17. Round | 03/12/2011 | NK Karlovac | - | NK Zagreb | 3:3 | ||||
| 19. Round | 25/02/2012 | NK Karlovac | - | Dinamo Zagreb | 0:3 | ||||
| 20. Round | 03/03/2012 | HNK Cibalia | - | NK Karlovac | 2:0 | ||||
| 21. Round | 10/03/2012 | NK Karlovac | - | Slaven Belupo | 0:0 | ||||
| 22. Round | 16/03/2012 | NK Inter Zaprešić | - | NK Karlovac | 4:0 | ||||
| 18. Round | 21/03/2012 | RNK Split | - | NK Karlovac | 3:1 | ||||
| 23. Round | 24/03/2012 | NK Osijek | - | NK Karlovac | 1:1 | ||||
| 24. Round | 31/03/2012 | NK Karlovac | - | NK Lučko | 0:0 | ||||
| 25. Round | 07/04/2012 | Hajduk Split | - | NK Karlovac | 1:0 | ||||
| 27. Round | 20/04/2012 | Lokomotiva Zagreb | - | NK Karlovac | 2:1 | ||||
| 28. Round | 28/04/2012 | NK Karlovac | - | HNK Šibenik | 1:0 | ||||
| 29. Round | 05/05/2012 | NK Zadar | - | NK Karlovac | 2:2 | ||||
| 30. Round | 12/05/2012 | NK Karlovac | - | HNK Rijeka | 1:2 |
Croatia