| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obrson | city | Sisacko-Moslavacka Zupanija | Croatia | 45.37 | 16.85 | 367 | 1651 |
| Odra | city | Sisacko-Moslavacka Zupanija | Croatia | 45.50 | 16.35 | 308 | 13140 |
| Odra Sisacka | city | Sisacko-Moslavacka Zupanija | Croatia | 45.50 | 16.35 | 308 | 13140 |
| Ograde | city | Sisacko-Moslavacka Zupanija | Croatia | 45.44 | 17.00 | 830 | 1852 |
| Oklinak | city | Sisacko-Moslavacka Zupanija | Croatia | 45.29 | 16.97 | 334 | 2512 |
| Okoli | city | Sisacko-Moslavacka Zupanija | Croatia | 45.59 | 16.52 | 278 | 3418 |
| Opeke | city | Sisacko-Moslavacka Zupanija | Croatia | 45.37 | 16.83 | 344 | 952 |
| Orahovo Polje | city | Sisacko-Moslavacka Zupanija | Croatia | 45.32 | 16.97 | 360 | 3783 |
| Orlova | city | Sisacko-Moslavacka Zupanija | Croatia | 45.24 | 15.98 | 830 | 3556 |
| Ornjak | city | Sisacko-Moslavacka Zupanija | Croatia | 45.26 | 17.01 | 288 | 1454 |
| Osekovo | city | Sisacko-Moslavacka Zupanija | Croatia | 45.52 | 16.62 | 308 | 2173 |
| Osmanke | city | Sisacko-Moslavacka Zupanija | Croatia | 45.31 | 16.81 | 341 | 1619 |
| Ostojici | city | Sisacko-Moslavacka Zupanija | Croatia | 45.15 | 16.10 | 846 | 995 |
| Ostojići | city | Sisacko-Moslavacka Zupanija | Croatia | 45.17 | 16.07 | 1669 | 1547 |
| Ostrožin | city | Sisacko-Moslavacka Zupanija | Croatia | 45.42 | 15.85 | 830 | 1496 |
| Oszekovo | city | Sisacko-Moslavacka Zupanija | Croatia | 45.52 | 16.62 | 308 | 2173 |
| Otave | city | Sisacko-Moslavacka Zupanija | Croatia | 45.22 | 16.51 | 387 | 21951 |
| Otoke | city | Sisacko-Moslavacka Zupanija | Croatia | 45.19 | 16.83 | 314 | 3967 |