| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
501  | Onaisohoek | Namibia, Kunene Region | locality | S 18° 49′ 0'' | E 14° 40′ 0'' |
| 502 | Onanjalala | Namibia, Omusati Region | locality | S 18° 5′ 0'' | E 15° 22′ 0'' |
503  | Omupanda Omupanau,Omupanda,Omupandu | Namibia, Otjozondjupa Region | populated place | S 20° 36′ 0'' | E 17° 28′ 0'' |
504  | Omuhonga Omuhonga,Omuhonga Mountains,Omuhongaberge | Namibia, Kunene Region | mountains | S 17° 15′ 0'' | E 13° 12′ 0'' |
| 505 | Ompundia Ompundia,Ompundja,Onimuandi,Onimwandi | Namibia, Oshana Region | populated place | S 17° 54′ 36'' | E 15° 43′ 39'' |
| 506 | Omatambo-Maowe | Namibia, | area | S 18° 34′ 38'' | E 14° 36′ 37'' |
| 507 | Omaruru River Game Park | Namibia, Erongo Region | wildlife reserve | S 21° 48′ 0'' | E 14° 42′ 0'' |
| 508 | Omambuku | Namibia, Omusati Region | populated place | S 18° 8′ 14'' | E 15° 25′ 43'' |
| 509 | Omaheke | Namibia, Otjozondjupa Region | area | S 19° 18′ 0'' | E 19° 26′ 0'' |
| 510 | Okozonduzu Okosonduju,Okosondusu,Okozonduzu | Namibia, Otjozondjupa Region | populated place | S 20° 49′ 0'' | E 18° 2′ 0'' |
| 511 | Okatjene | Namibia, Kunene Region | locality | S 17° 28′ 20'' | E 14° 13′ 44'' |
| 512 | Okarulu | Namibia, Oshikoto Region | locality | S 18° 9′ 12'' | E 16° 1′ 6'' |
| 513 | Okamanga Okamanga,Omjamu,Omjamuberge,Onjamu Mountains | Namibia, Kunene Region | mountain | S 17° 52′ 35'' | E 12° 51′ 37'' |
| 514 | Okakue | Namibia, Kunene Region | locality | S 18° 57′ 0'' | E 13° 57′ 0'' |
| 515 | Okakangokiiyambo | Namibia, Oshana Region | locality | S 18° 10′ 42'' | E 15° 52′ 30'' |
| 516 | Okaihele | Namibia, Kunene Region | locality | S 18° 17′ 54'' | E 14° 4′ 12'' |
| 517 | Oishu | Namibia, Kunene Region | locality | S 17° 24′ 27'' | E 14° 19′ 8'' |
| 518 | Obibberge Obib,Obib Berg,Obibberge | Namibia, Karas Region | mountains | S 28° 2′ 13'' | E 16° 40′ 39'' |
| 519 | Oamseb Oamseb,Oamsib,Omaseb | Namibia, Hardap Region | populated place | S 24° 5′ 4'' | E 18° 33′ 4'' |
| 520 | Nyime | Namibia, Kavango West | area | S 17° 52′ 0'' | E 18° 11′ 0'' |
| 521 | Nuwe Modderdrift Modderdrift,Nuwe Modderdrif,Nuwe Modderdrift,NuweModderdrift | Namibia, Karas Region | populated place | S 28° 41′ 48'' | E 17° 31′ 32'' |
| 522 | Spitzkoppe Nunaib se Kop,Spitzkop,Spitzkoppe | Namibia, Erongo Region | hill | S 21° 50′ 23'' | E 15° 12′ 5'' |
| 523 | Numabis | Namibia, Karas Region | area | S 25° 31′ 0'' | E 15° 35′ 0'' |
| 524 | Nuwefontein Wes Nieuwefontein,Nieuwefontein West,Nuwefontein Wes | Namibia, Karas Region | populated place | S 28° 19′ 41'' | E 18° 23′ 14'' |
| 525 | Ncuncunda | Namibia, Kavango West | area | S 17° 31′ 0'' | E 18° 1′ 0'' |
| 526 | Ncamakure Ncamakure,Nkuruvere | Namibia, Kavango West | area | S 17° 52′ 37'' | E 18° 16′ 17'' |
| 527 | Ncakwema | Namibia, Kavango West | area | S 17° 35′ 3'' | E 18° 16′ 41'' |
| 528 | Nayimanya | Namibia, Kavango West | area | S 17° 50′ 22'' | E 18° 17′ 35'' |
| 529 | Nawugui Vlei Nawagui,Nawugui Vlei,Nawugui Vley | Namibia, Kavango West | pan | S 18° 39′ 0'' | E 18° 13′ 0'' |
| 530 | Naukluft Mountain Zebra Park | Namibia, Hardap Region | wildlife reserve | S 24° 13′ 0'' | E 16° 13′ 0'' |
| 531 | Natukanaoka Natukanaoka,Natukanaoko Pan,Natukanaoko-Pfanne | Namibia, Kunene Region | pan | S 18° 35′ 49'' | E 15° 44′ 24'' |
| 532 | Nasepberge Nasep Hills,Nasepberg,Nasepberge | Namibia, Karas Region | mountains elevation 1647m | S 27° 38′ 0'' | E 16° 48′ 39'' |
| 533 | Narachaamspos Naachaams,Narachaams,Narachaams Pos,Narachaamspos | Namibia, Kunene Region | populated place | S 20° 11′ 44'' | E 14° 50′ 29'' |
| 534 | Nangera | Namibia, Kavango West | area | S 17° 39′ 1'' | E 18° 9′ 58'' |
| 535 | Nananib Plateau Nanania Plateau,Nananib Plateau,Zwiebel-Hochebene | Namibia, Hardap Region | plateau | S 25° 10′ 0'' | E 17° 5′ 0'' |
| 536 | Namitsis Namitsis,Nammitzis,Numitsis | Namibia, Karas Region | mountain elevation 774m | S 27° 27′ 29'' | E 15° 51′ 40'' |
| 537 | Nainais Nainais,Neineis,Neneis | Namibia, Erongo Region | populated place | S 21° 26′ 56'' | E 15° 4′ 1'' |
| 538 | Mutwegompuru | Namibia, Kavango West | area | S 17° 47′ 1'' | E 18° 27′ 38'' |
| 539 | Muraye | Namibia, Kavango West | area | S 17° 25′ 19'' | E 18° 10′ 8'' |
| 540 | Munyondo | Namibia, Kavango West | area | S 17° 37′ 5'' | E 18° 11′ 32'' |
| 541 | Mungomba | Namibia, Kavango West | area | S 17° 36′ 0'' | E 18° 21′ 0'' |
| 542 | Mukurob Finger of God,Fingerklip,Mukurob | Namibia, Karas Region | rock | S 25° 29′ 0'' | E 18° 10′ 0'' |
| 543 | Mukekete | Namibia, Kavango West | area | S 17° 35′ 18'' | E 18° 3′ 52'' |
| 544 | Mondesa  Mondesa | Namibia, Erongo Region | section of populated place | S 22° 39′ 0'' | E 14° 32′ 0'' |
| 545 | Mickberg Mieckberg,Mikberg | Namibia, Karas Region | mountain elevation 1734m | S 27° 33′ 12'' | E 18° 31′ 41'' |
| 546 | Meob | Namibia, Hardap Region | locality | S 24° 40′ 19'' | E 14° 44′ 46'' |
| 547 | Mayenzere Maenzere,Maienzele,Majenzele,Mayenzere | Namibia, Kavango West | populated place | S 17° 50′ 48'' | E 19° 9′ 7'' |
| 548 | Mavhenge Mavenge,Mavhenge,Mayhenge | Namibia, Kavango West | populated place | S 17° 30′ 42'' | E 18° 30′ 46'' |
| 549 | Marshall Rocks Marschall Rocks,Marshall Felsen,Marshall Rocks | Namibia, Karas Region | rocks | S 26° 21′ 11'' | E 14° 57′ 21'' |
| 550 | Makalani Palms | Namibia, Oshana Region | area | S 17° 49′ 0'' | E 15° 35′ 0'' |
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