| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Olib | city | Zadarska Zupanija | Croatia | 44.38 | 14.78 | 91 | 0 |
| Oliveto | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.40 | 16.21 | 200 | 11030 |
| Olivetto | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.40 | 16.21 | 200 | 11030 |
| Oljasi | city | Pozesko-Slavonska Zupanija | Croatia | 45.41 | 17.58 | 859 | 1251 |
| Oljubine | city | Licko-Senjska Zupanija | Croatia | 44.72 | 15.64 | 2509 | 256 |
| Olmeto | city | Istarska Zupanija | Croatia | 45.45 | 14.01 | 2509 | 1730 |
| Olmeto di Bogliuno | city | Istarska Zupanija | Croatia | 45.33 | 14.15 | 2509 | 3199 |
| Oltari | city | Licko-Senjska Zupanija | Croatia | 44.87 | 14.98 | 3566 | 0 |
| Oltre | city | Zadarska Zupanija | Croatia | 44.08 | 15.20 | 0 | 6450 |
| Oluici | city | Zadarska Zupanija | Croatia | 44.16 | 15.79 | 830 | 815 |