Nueva Zelanda
Países del mundo
O
- (Far North District) Omanaia
- (Western Bay of Plenty District) Omanawa Falls
- (New Plymouth District) Omata
- (Auckland) Omiha
- (Hurunui District) Omihi
- (Dunedin City) Omimi
- (South Taranaki District) Omoana
- (Western Bay of Plenty District) Omokoroa Beach
- (Marlborough District) Onamalutu
- (Marlborough District) Onapua
- (Marlborough District) Onauku
- (Auckland) Onetangi
- (Kaipara District) Onetea
- (Central Hawke's Bay District) Onga Onga
- (Ruapehu District) Ongarue
- (Waitomo District) Oniao
- (Hastings District) Opapa
- (Otorohanga District) Oparau
- (Central Otago District) Ophir
- (Southland District) Opio
- (Opotiki District) Oponae
- (Far North District) Opononi
- (Wairoa District) Opoutama
- (Thames-Coromandel District) Opoutere
- (Auckland) Opuatia
- (Whangarei) Opuawhanga
- (Central Otago District) Orangapai
- (South Taranaki District) Orangimea
- (Southland District) Orawia
- (Southland District) Orawia Bridge