| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
3901  | Ongelegen Ongelee,Ongelegen,Ongeleë | South Africa, Eastern Cape | railroad siding | S 33° 44′ 17'' | E 23° 25′ 7'' |
| 3902 | Ongegen Ongegen,Ongegund | South Africa, Western Cape Overberg District Municipality > Swellendam | farm | S 34° 8′ 50'' | E 20° 2′ 9'' |
| 3903 | One Tree Hill N'hlumi,N’hlumi,One Tree Hill | South Africa, Mpumalanga Ehlanzeni District > Nkomazi | farm | S 25° 32′ 34'' | E 31° 39′ 46'' |
| 3904 | One Oak Oakdene,One Oak | South Africa, Eastern Cape Amathole District Municipality > Nxuba | farm | S 32° 37′ 57'' | E 26° 15′ 22'' |
| 3905 | Onder-Traka Onder-Traka,Traka | South Africa, Eastern Cape Sarah Baartman District Municipality > Baviaans | farm | S 33° 14′ 10'' | E 22° 53′ 16'' |
| 3906 | Onder Roodenek Onder Roodenek,Roodenek | South Africa, Eastern Cape Joe Gqabi District Municipality > Maletswai | farm | S 31° 1′ 27'' | E 27° 7′ 34'' |
| 3907 | Onder-Campbell Campbell,Onder-Campbell | South Africa, Northern Cape Pixley ka Seme District Municipality > Siyancuma | farm | S 28° 49′ 1'' | E 23° 44′ 1'' |
| 3908 | Omsingel Omsinge,Omsingel | South Africa, Limpopo Waterberg District Municipality > Modimolle | railroad siding | S 24° 23′ 12'' | E 28° 6′ 44'' |
| 3909 | Olyvenrivier Olyve Rivier,Olyvenrivier | South Africa, Western Cape Eden District Municipality > Kannaland | farm | S 33° 43′ 31'' | E 21° 26′ 37'' |
| 3910 | Olyvenkolk Olyven's Kolk,Olyvenkolk,Olyven’s Kolk | South Africa, Northern Cape Siyanda District Municipality > Kai !Garib | farm | S 29° 29′ 54'' | E 20° 51′ 6'' |
| 3911 | Olyvenfontein Olivenfontein,Olyvenfontein | South Africa, Eastern Cape Sarah Baartman District Municipality > Ikwezi | farm | S 32° 57′ 30'' | E 24° 50′ 6'' |
| 3912 | Olyvenbos Olivenbos,Olyvenbos | South Africa, Eastern Cape Joe Gqabi District Municipality > Gariep | farm | S 30° 37′ 27'' | E 25° 55′ 46'' |
| 3913 | Olynput Olievenput,Olynput | South Africa, Free State Lejweleputswa District Municipality > Tokologo | farm | S 28° 29′ 14'' | E 24° 57′ 6'' |
| 3914 | Olthona Oithona,Olthona | South Africa, Eastern Cape Chris Hani District Municipality > Sakhisizwe | farm | S 31° 15′ 41'' | E 27° 42′ 34'' |
| 3915 | Olivenpoort Olievenpoort,Olivenpoort | South Africa, Limpopo Waterberg District Municipality > Thabazimbi | farm | S 24° 41′ 11'' | E 27° 37′ 25'' |
| 3916 | Oliphantsvley Olifantsvlei,Oliphantsvley | South Africa, Free State Fezile Dabi District Municipality > Moqhaka | farm | S 27° 6′ 4'' | E 26° 53′ 39'' |
| 3917 | Olijve Fontein Olijve Fontein,Olyve Fontein | South Africa, Eastern Cape Joe Gqabi District Municipality > Maletswai | farm | S 30° 48′ 31'' | E 26° 37′ 42'' |
| 3918 | Olifantsvallei Olifantsvallei,Olifantsvlei | South Africa, North West Ngaka Modiri Molema District Municipality > Ramotshere Moiloa | farm | S 25° 17′ 5'' | E 26° 17′ 59'' |
| 3919 | Olifantstenk Elephants Tank,Olifantstenk | South Africa, Limpopo Mopani District Municipality > Maruleng | railroad siding | S 24° 16′ 16'' | E 30° 53′ 40'' |
| 3920 | Olifantsrivier Olifants River,Olifantsrivier | South Africa, Mpumalanga Nkangala District Municipality > Emalahleni | railroad station | S 25° 48′ 48'' | E 29° 17′ 51'' |
| 3921 | Olifantsdam Olfantsdam,Olifantsdam | South Africa, Free State Lejweleputswa District Municipality > Tokologo | farm | S 28° 48′ 15'' | E 24° 56′ 20'' |
| 3922 | Olifantsbrug Olifants Bridge,Olifantsbrug | South Africa, North West Bojanala Platinum > Rustenburg | farm | S 25° 51′ 19'' | E 27° 17′ 33'' |
| 3923 | Olievenhoutfontein Olienhoutsfontein,Olievenhoutfontein | South Africa, Limpopo Waterberg District Municipality > Lephalale | farm | S 24° 9′ 57'' | E 28° 3′ 51'' |
| 3924 | Olievenfontein Olievenfontein,Olive Fontein | South Africa, Northern Cape Pixley ka Seme District Municipality > Renosterberg | farm | S 30° 22′ 23'' | E 24° 21′ 13'' |
| 3925 | Olievenfontein Olievenfontein,Olivenfontein Halt | South Africa, Limpopo Waterberg District Municipality > Bela-Bela | farm | S 24° 52′ 37'' | E 28° 3′ 55'' |
| 3926 | Olienhoutplaat Olienhoutplaat,Waterkloof | South Africa, Free State Mangaung Metropolitan Municipality > Mangaung | railroad station | S 29° 9′ 47'' | E 25° 59′ 19'' |
| 3927 | Oliefantskop Oliefantskop,Oliphantskop | South Africa, Limpopo Waterberg District Municipality > Lephalale | farm | S 23° 57′ 59'' | E 27° 27′ 51'' |
| 3928 | Old Ingeli Store Ingeli,Old Ingeli Store | South Africa, Eastern Cape | farm | S 30° 31′ 0'' | E 29° 39′ 0'' |
| 3929 | Ogedlani Ogedlani,Ogedleni | South Africa, KwaZulu-Natal Zululand District Municipality > Nongoma | mission | S 27° 40′ 0'' | E 31° 48′ 0'' |
| 3930 | Ogaqeni Ogaqeni,Oqaqeni | South Africa, KwaZulu-Natal iLembe District Municipality > Maphumulo | farm | S 29° 8′ 33'' | E 31° 10′ 25'' |
| 3931 | Ockerts Kraal Bo-ockertskraal,Ockerts Kraal | South Africa, Western Cape Eden District Municipality > Kannaland | farm | S 33° 39′ 5'' | E 21° 3′ 8'' |
| 3932 | Oceloa Oceloa,Oceola | South Africa, North West | farm | S 27° 1′ 0'' | E 23° 52′ 0'' |
| 3933 | Obesa Obesa,Obizo | South Africa, KwaZulu-Natal uThungulu District Municipality > Ntambanana | mission | S 28° 39′ 0'' | E 31° 53′ 0'' |
| 3934 | Oberon Oberon,Schoemansville | South Africa, North West Bojanala Platinum > Local Municipality of Madibeng | railroad siding | S 25° 46′ 0'' | E 27° 53′ 0'' |
| 3935 | Oasis Oasie,Oasis | South Africa, Free State Fezile Dabi District Municipality > Moqhaka | railroad siding | S 27° 9′ 1'' | E 26° 50′ 40'' |
| 3936 | Nzamba Nzamba,Nzamba Mouth | South Africa, Eastern Cape Alfred Nzo District Municipality > Mbizana | mission | S 31° 6′ 0'' | E 30° 9′ 0'' |
| 3937 | Nyhoffsbult Nyhoffa Bult,Nyhoffsbult | South Africa, Limpopo Waterberg District Municipality > Mookgopong | farm | S 24° 6′ 50'' | E 28° 37′ 57'' |
| 3938 | Nyezane Inyezane,Nyezane | South Africa, KwaZulu-Natal uThungulu District Municipality > uMlalazi | railroad siding | S 29° 1′ 42'' | E 31° 37′ 23'' |
| 3939 | Nyaninga Nyaninga,Nyeninga | South Africa, KwaZulu-Natal eThekwini > Ethekwini | railroad siding | S 29° 35′ 57'' | E 31° 4′ 55'' |
| 3940 | Nyala Nyala | South Africa, Limpopo Vhembe District Municipality > Mutale | mine(s) | S 22° 31′ 52'' | E 30° 37′ 23'' |
| 3941 | Nxumen Nxumen,Xumen Forest Reserve | South Africa, KwaZulu-Natal Sisonke District Municipality > Ingwe | forest station | S 29° 55′ 33'' | E 29° 50′ 6'' |
| 3942 | Nuwerus Nuwe Rand,Nuwerus | South Africa, Western Cape Eden District Municipality > Oudtshoorn | farm | S 33° 30′ 12'' | E 22° 14′ 14'' |
| 3943 | Nuwerus Nuwerus,Nuwerust | South Africa, Eastern Cape Joe Gqabi District Municipality > Gariep | farm | S 31° 4′ 28'' | E 26° 1′ 22'' |
| 3944 | Nuwejaarsvlei Nieuwejaarsvley,Nuwejaarsvlei | South Africa, Free State Thabo Mofutsanyana District Municipality > Maluti a Phofung | farm | S 28° 30′ 3'' | E 29° 1′ 50'' |
| 3945 | Nuwejaarsfontein Nieuwjaarsfontein,Nuwejaarsfontein | South Africa, Northern Cape Pixley ka Seme District Municipality > Emthanjeni | farm | S 30° 50′ 53'' | E 23° 27′ 11'' |
| 3946 | Nuwejaarsbos Nieuwejaarsbosch,Nuwejaarsbos | South Africa, Free State Lejweleputswa District Municipality > Matjhabeng | farm | S 27° 49′ 31'' | E 26° 53′ 33'' |
| 3947 | Nuwedam Nieuwedam,Nuwedam | South Africa, Northern Cape Pixley ka Seme District Municipality > Ubuntu | farm | S 31° 8′ 35'' | E 21° 45′ 39'' |
| 3948 | Nurney Hill Nurney Hill,Nurvey Hill | South Africa, Eastern Cape Amathole District Municipality > Ngqushwa | farm | S 33° 10′ 30'' | E 27° 12′ 16'' |
| 3949 | Ntumbeni Ntabeni,Ntumbeni | South Africa, KwaZulu-Natal uThungulu District Municipality > Nkandla | mission | S 28° 38′ 12'' | E 31° 7′ 50'' |
| 3950 | Ntsikizini Ntsikinzini,Ntsikizini | South Africa, Eastern Cape Amathole District Municipality > Ngqushwa | farm | S 32° 57′ 0'' | E 27° 17′ 0'' |
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