| Hawaii State Locator Citys, Towns, Villages, and Other beginning with the letter O |
| CITY/TOWN/VILLAGE/ETC. | LOCATED IN THIS TOWN | COUNTY |
| Ocean View | Kau | Hawaii |
| Ohia Mill | South Kona | Hawaii |
| Ohiapili | East Molokai | Maui |
| Olowalu | Lahaina | Maui |
| Olu Pua Plantation | Eleele-Kalaheo | Kauai |
| Omao | Eleele-Kalaheo | Kauai |
| Onomea | South Hilo | Hawaii |
| Ookala | North Hilo | Hawaii |
| Opaeula Camp Three | Waialua | Honolulu |
| Opihikao | Puna | Hawaii |