Nouvelle-Zélande
Îles commençant par o
- O Wiwi Ku
- Oaia Island
- Ocean Island
- Ohakana Island
- Ōhau / West Island
- Ohaureko Island
- Ohauroro Island (Peach Island)
- Ohinau Island
- Ohinauiti Island
- Okahu
- Okaoko Rock
- Okatakata Islands
- Oke Island
- Oke Rock
- Okokewa Island (Green island)
- Okorotere Island
- Okupe Island
- Old Man Rock
- Old Man Rock
- Old Mill Nugget
- Old Pa
- Omahu Islets
- Omaia
- Omaia Island
- Omapere Rock
- Omaui Island
- One Tree Rock
- Opahekeheke Island
- Opakau Island
- Opeope Rocks
- Opourapa Island
- Opuawhanga Island
- Opuhi Rocks
- Orarapa Island (The Haystack)
- Organs Island
- Orphans Rock
- Oruapopou Island
- Oruatemanu Island
- Otamahua/Quail Island
- Otamanewa Island
- Otarawa island
- Otarawhata Island
- Otata Island
- Otawhanga Island
- Otitia Rock
- Otumatu Rock
- Otumutu Island
- Oturori Rock
- Otuwhanga Island
- Ouokaha Island