| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1801  | Otokia | New Zealand, Otago Dunedin City | populated place | S 45° 57′ 0'' | E 170° 12′ 0'' |
| 1802 | Otipua | New Zealand, Canterbury Timaru District | populated place | S 44° 26′ 0'' | E 171° 10′ 0'' |
| 1803 | Otekura | New Zealand, Otago Clutha District | populated place | S 46° 26′ 0'' | E 169° 46′ 0'' |
| 1804 | Otekaieke Otekaike | New Zealand, Canterbury | populated place | S 44° 49′ 26'' | E 170° 34′ 8'' |
| 1805 | Otaua | New Zealand, Waikato Region Waikato District | populated place | S 37° 18′ 23'' | E 174° 44′ 27'' |
| 1806 | Otarawao | New Zealand, Marlborough Marlborough District | populated place | S 41° 3′ 0'' | E 173° 41′ 0'' |
| 1807 | Otara | New Zealand, Southland Southland District | populated place | S 46° 38′ 0'' | E 168° 53′ 0'' |
| 1808 | Otapiri Gorge | New Zealand, Southland Southland District | populated place | S 46° 3′ 0'' | E 168° 27′ 0'' |
| 1809 | Otangihaku | New Zealand, Bay of Plenty Whakatane District | populated place | S 38° 2′ 0'' | E 177° 0′ 0'' |
| 1810 | Otangaroa | New Zealand, Northland Far North District | populated place | S 35° 5′ 0'' | E 173° 38′ 0'' |
| 1811 | Otanerau | New Zealand, Marlborough Marlborough District | populated place | S 41° 11′ 0'' | E 174° 20′ 0'' |
| 1812 | Otamita | New Zealand, Southland Gore District | populated place | S 46° 1′ 0'' | E 168° 51′ 0'' |
| 1813 | Otamarakau | New Zealand, Bay of Plenty Western Bay of Plenty District | populated place | S 37° 50′ 0'' | E 176° 36′ 0'' |
| 1814 | Otama | New Zealand, Southland Gore District | populated place | S 45° 57′ 0'' | E 168° 52′ 0'' |
| 1815 | Otakiri | New Zealand, Bay of Plenty Whakatane District | populated place | S 37° 59′ 0'' | E 176° 46′ 0'' |
| 1816 | Otakeho | New Zealand, Taranaki Region South Taranaki District | populated place | S 39° 33′ 0'' | E 174° 3′ 0'' |
| 1817 | Otaitai | New Zealand, Southland Southland District | populated place | S 46° 20′ 0'' | E 168° 3′ 0'' |
| 1818 | Otaio | New Zealand, Canterbury Waimate District | populated place | S 44° 35′ 0'' | E 171° 10′ 0'' |
| 1819 | Otahuti | New Zealand, Southland Southland District | populated place | S 46° 15′ 0'' | E 168° 12′ 0'' |
| 1820 | Oruru | New Zealand, Northland Far North District | populated place | S 35° 2′ 0'' | E 173° 30′ 0'' |
| 1821 | Oruanui | New Zealand, Waikato Region Taupo District | populated place | S 38° 35′ 0'' | E 176° 2′ 0'' |
| 1822 | Oruaiwi | New Zealand, Manawatu-Wanganui Ruapehu District | populated place | S 38° 49′ 0'' | E 175° 27′ 0'' |
| 1823 | Orton | New Zealand, Canterbury Timaru District | populated place | S 44° 10′ 0'' | E 171° 26′ 0'' |
| 1824 | Oroua Downs | New Zealand, Manawatu-Wanganui Manawatu District | populated place | S 40° 22′ 0'' | E 175° 19′ 0'' |
| 1825 | Ormondville | New Zealand, Manawatu-Wanganui Tararua District | populated place | S 40° 6′ 32'' | E 176° 15′ 50'' |
| 1826 | Orini | New Zealand, Waikato Region Waikato District | populated place | S 37° 34′ 0'' | E 175° 18′ 0'' |
| 1827 | Oreti Plains Oreti | New Zealand, Southland Southland District | populated place | S 46° 8′ 0'' | E 168° 14′ 0'' |
| 1828 | Orawia Bridge | New Zealand, Southland Southland District | populated place | S 46° 3′ 0'' | E 167° 48′ 0'' |
| 1829 | Orawia | New Zealand, Southland Southland District | populated place | S 46° 3′ 0'' | E 167° 49′ 0'' |
| 1830 | Oranoa | New Zealand, Northland Kaipara District | populated place | S 35° 42′ 0'' | E 173° 36′ 0'' |
| 1831 | Orangimea | New Zealand, Taranaki Region South Taranaki District | populated place | S 39° 40′ 0'' | E 174° 52′ 0'' |
| 1832 | Orangapai | New Zealand, Otago Central Otago District | populated place | S 45° 14′ 0'' | E 170° 8′ 0'' |
| 1833 | Opuawhanga | New Zealand, Northland Whangarei | populated place | S 35° 30′ 0'' | E 174° 21′ 0'' |
| 1834 | Opuatia | New Zealand, Auckland Auckland | populated place | S 37° 24′ 17'' | E 175° 0′ 0'' |
| 1835 | Opoutama | New Zealand, Hawke's Bay Region Wairoa District | populated place | S 39° 3′ 35'' | E 177° 49′ 54'' |
| 1836 | Opononi | New Zealand, Northland Far North District | populated place | S 35° 30′ 0'' | E 173° 24′ 0'' |
| 1837 | Oponae | New Zealand, Bay of Plenty Opotiki District | populated place | S 38° 15′ 0'' | E 177° 18′ 0'' |
| 1838 | Opio | New Zealand, Southland Southland District | populated place | S 45° 57′ 0'' | E 168° 6′ 0'' |
| 1839 | Oparau | New Zealand, Waikato Region Otorohanga District | populated place | S 38° 3′ 0'' | E 174° 55′ 0'' |
| 1840 | Oparara | New Zealand, West Coast Buller District | populated place | S 41° 13′ 0'' | E 172° 7′ 0'' |
| 1841 | Opapa | New Zealand, Hawke's Bay Region Hastings District | populated place | S 39° 48′ 0'' | E 176° 41′ 0'' |
| 1842 | Oniao | New Zealand, Waikato Region Waitomo District | populated place | S 38° 34′ 0'' | E 175° 5′ 0'' |
| 1843 | Ongarue | New Zealand, Manawatu-Wanganui Ruapehu District | populated place | S 38° 43′ 0'' | E 175° 17′ 0'' |
| 1844 | Onga Onga | New Zealand, Hawke's Bay Region Central Hawke's Bay District | populated place | S 39° 55′ 0'' | E 176° 25′ 0'' |
| 1845 | Onetea | New Zealand, Northland Kaipara District | populated place | S 35° 49′ 0'' | E 173° 55′ 0'' |
| 1846 | Onetangi | New Zealand, Auckland Auckland | populated place | S 36° 47′ 0'' | E 175° 5′ 0'' |
| 1847 | Onauku | New Zealand, Marlborough Marlborough District | populated place | S 41° 7′ 0'' | E 174° 22′ 0'' |
| 1848 | Onapua | New Zealand, Marlborough Marlborough District | populated place | S 41° 16′ 0'' | E 174° 11′ 0'' |
| 1849 | Onamalutu | New Zealand, Marlborough Marlborough District | populated place | S 41° 27′ 0'' | E 173° 43′ 0'' |
| 1850 | Omokoroa Beach | New Zealand, Bay of Plenty Western Bay of Plenty District | populated place | S 37° 38′ 0'' | E 176° 3′ 0'' |
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