République populaire de Chine
Îles commençant par o
- Observatory Island
- Oliphant Island (historical)
- Osborn Island (historical)
- Ostrov Bol’shoy
- Ostrov Venyukovskiy
- Otter Island (historical)
- Ou’ao Shan
- Outer Cleft Island
- Outer Island (historical)
- Outpost Island