| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oborine | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.69 | 16.78 | 2060 | 1365 |
| Oborine | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.75 | 16.76 | 2509 | 1836 |
| Obravac | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.74 | 16.68 | 1669 | 1527 |
| Obrovac Sinjski | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.74 | 16.68 | 1669 | 1527 |
| Ocinjak | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.61 | 16.66 | 1669 | 1679 |
| Odrljani | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.62 | 16.70 | 997 | 1380 |
| Odza | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.57 | 16.50 | 990 | 4082 |
| Ogorje Donje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.74 | 16.43 | 1840 | 2387 |
| Ogorje Gornje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.74 | 16.50 | 2867 | 1831 |
| Ograde | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.50 | 17.01 | 2509 | 14508 |
| Ograde | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.58 | 16.75 | 1253 | 1512 |
| Ogrebići | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.82 | 16.56 | 1669 | 933 |
| Okljucna | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.07 | 16.13 | 830 | 1332 |
| Oključina | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.07 | 16.13 | 830 | 1332 |
| Okmadžići | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.27 | 17.18 | 1669 | 6481 |
| Okrug | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.50 | 16.22 | 3 | 7880 |
| Okrug Donji | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.50 | 16.21 | 0 | 7005 |
| Okrug Gornji | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.50 | 16.22 | 3 | 7880 |
| Okruglica | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.54 | 16.71 | 1669 | 651 |
| Oliveto | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.40 | 16.21 | 200 | 11030 |
| Olivetto | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.40 | 16.21 | 200 | 11030 |
| Omari | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.69 | 16.89 | 4596 | 3210 |
| Ombarine | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.58 | 16.91 | 2509 | 1278 |
| Omiš | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.44 | 16.69 | 0 | 6159 |
| Opanci | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.48 | 16.98 | 1669 | 1724 |
| Opački | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.29 | 17.29 | 2509 | 6321 |
| Opsenjak | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.86 | 16.56 | 3349 | 1723 |
| Općen Dolac | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.24 | 17.21 | 1669 | 6063 |
| Orah | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.23 | 17.40 | 1128 | 5761 |
| Orahovlje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.22 | 17.43 | 213 | 5535 |
| Orlovac | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.42 | 16.87 | 830 | 2817 |
| Orlovaca | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.84 | 16.63 | 2841 | 650 |
| Osoje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.54 | 16.68 | 1669 | 1160 |
| Osoje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.62 | 16.59 | 1000 | 2686 |
| Ostrvica | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.45 | 16.75 | 830 | 1269 |
| Otisic | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.84 | 16.51 | 1669 | 2275 |
| Otok | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.69 | 16.74 | 1669 | 1777 |
| Otok Staje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.70 | 16.78 | 2509 | 1365 |
| Otrglica | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.73 | 16.57 | 1814 | 1059 |
| Ovrlja | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.69 | 16.75 | 1669 | 1790 |
| Ovrlje | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.69 | 16.75 | 1669 | 1790 |
| Ozic Basici | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.32 | 17.20 | 2627 | 9456 |
| Ozici | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.30 | 17.18 | 1824 | 9480 |
| Ozrna | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.56 | 16.54 | 1669 | 4910 |
| Oštruljevina | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.41 | 17.27 | 859 | 5632 |
| Ožići | city | Splitsko-Dalmatinska Zupanija | Croatia | 43.30 | 17.17 | 1761 | 9850 |