| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| O-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.9252778 | 129.0166667 | 2270 | 13472 |
| O-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.0227778 | 129.2555556 | 2854 | 13452 |
| O-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.4536111 | 129.3605556 | 1099 | 10024 |
| Obok | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8383333 | 129.1888889 | 433 | 13699 |
| Obok-tong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8525 | 129.1688889 | 590 | 13699 |
| Obok-tong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8383333 | 129.1888889 | 433 | 13699 |
| Obong-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.0505556 | 129.3672222 | 3953 | 13447 |
| Obong-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.4005556 | 129.7622222 | 977 | 13273 |
| Obong-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.5194444 | 130.3033333 | 216 | 13349 |
| Obong-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8383333 | 129.1888889 | 433 | 13699 |
| Obong-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.0505556 | 129.3672222 | 3953 | 13447 |
| Obong-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.4005556 | 129.7622222 | 977 | 13273 |
| Obong-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.5194444 | 130.3033333 | 216 | 13349 |
| Obong-nodongjagu | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.5194444 | 130.3033333 | 216 | 13349 |
| Odaejil-lodongjagu | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.3777778 | 129.7705556 | 167 | 5462 |
| Odaejin | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.3777778 | 129.7705556 | 167 | 5462 |
| Odaejin-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.3777778 | 129.7705556 | 167 | 5462 |
| Odaejin-nodongjagu | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.3777778 | 129.7705556 | 167 | 5462 |
| Odang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8675 | 129.4172222 | 964 | 13698 |
| Odung-ch'on | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9525 | 129.1569444 | 1348 | 13682 |
| Odŭng-ch'on | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9525 | 129.1569444 | 1348 | 13682 |
| Oesimnijong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.1 | 129.1833333 | 1332 | 13647 |
| Oesimnijŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.1 | 129.1833333 | 1332 | 13647 |
| Ogumi | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8597222 | 129.1869444 | 370 | 13699 |
| Oha-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4319444 | 129.6238889 | 78 | 13343 |
| Ohang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.7666667 | 129.7666667 | 3 | 9580 |
| Ohyang-ch'on | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.3480556 | 129.4861111 | 685 | 13592 |
| Oin-gol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0452778 | 129.3497222 | 839 | 13657 |
| Ojaeng-gol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.6180556 | 129.6030556 | 111 | 13370 |
| Ojaenggok | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.6180556 | 129.6030556 | 111 | 13370 |
| Ojibau | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9333333 | 129.9 | 1243 | 15321 |
| Ojon-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0705556 | 129.4291667 | 744 | 13657 |
| Ojon-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0705556 | 129.4291667 | 744 | 13657 |
| Ok-tong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.1658333 | 129.1394444 | 1794 | 13637 |
| Okch'ol-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7375 | 129.0913889 | 488 | 13724 |
| Okch'on-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7375 | 129.0913889 | 488 | 13724 |
| Okch'on-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7375 | 129.0913889 | 488 | 13724 |
| Okch'ŏl-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7375 | 129.0913889 | 488 | 13724 |
| Okch'ŏn-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7375 | 129.0913889 | 488 | 13724 |
| Okch'ŏn-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7375 | 129.0913889 | 488 | 13724 |
| Okchun-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0733333 | 129.5788889 | 1637 | 13657 |
| Okho | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8419444 | 129.5952778 | 3 | 9644 |
| Okho | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8477778 | 129.6002778 | 52 | 9644 |
| Okoku-do | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0525 | 129.4480556 | 862 | 13657 |
| Okp'o | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9430556 | 129.3697222 | 1105 | 13682 |
| Oksan-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.4113889 | 129.9330556 | 1397 | 13377 |
| Oksodogi | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9816667 | 129.5838889 | 2214 | 13672 |
| Oksodok | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9816667 | 129.5838889 | 2214 | 13672 |
| Oksong-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.2833333 | 129.6333333 | 1932 | 13402 |
| Oksu-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.044444 | 129.2416667 | 994 | 13657 |
| Oksŏng-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.2833333 | 129.6333333 | 1932 | 13402 |
| Okt'aebong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0166667 | 129.6 | 1056 | 13662 |
| Oktang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8675 | 129.4172222 | 964 | 13698 |
| Ollyang | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.1025 | 129.5808333 | 1961 | 13647 |
| Omgwang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4333333 | 129.4333333 | 1804 | 13577 |
| Omgwang-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4333333 | 129.4333333 | 1804 | 13577 |
| Omhyang-gol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4413889 | 129.3911111 | 2565 | 13577 |
| Omhyang-kol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4413889 | 129.3911111 | 2565 | 13577 |
| Omo-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7533333 | 129.1844444 | 180 | 13714 |
| Omo-gol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.7533333 | 129.1844444 | 180 | 13714 |
| Omsong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Omsŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Onbo-ri | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.6588889 | 129.5269444 | 449 | 13532 |
| Onch'ol-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onch'ol-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.04 | 129.3505556 | 839 | 13662 |
| Onch'on-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8644444 | 129.1308333 | 754 | 13699 |
| Onch'on-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onch'on-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.013889 | 129.2158333 | 1663 | 13662 |
| Onch'on-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onch'ŏl-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onch'ŏl-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.04 | 129.3505556 | 839 | 13662 |
| Onch'ŏn-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8644444 | 129.1308333 | 754 | 13699 |
| Onch'ŏn-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onch'ŏn-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.013889 | 129.2158333 | 1663 | 13662 |
| Onch'ŏn-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Ondaejil-li | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5697222 | 129.6602778 | 0 | 9082 |
| Ondaejin | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5697222 | 129.6602778 | 0 | 9082 |
| Ondaejin-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5697222 | 129.6602778 | 0 | 9082 |
| Ongdo-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.85 | 129.65 | 52 | 9218 |
| Ongnarukaek-kol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.4208333 | 129.88 | 1223 | 13367 |
| Ongnyon-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9075 | 129.3883333 | 994 | 13690 |
| Ongnyon-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.9333333 | 129.6333333 | 1210 | 13472 |
| Ongnyŏn-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9075 | 129.3883333 | 994 | 13690 |
| Ongnyŏn-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.9333333 | 129.6333333 | 1210 | 13472 |
| Ongoaru-kaek-kol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.4208333 | 129.88 | 1223 | 13367 |
| Ongp'o | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.9586111 | 129.2708333 | 561 | 13672 |
| Ongsan-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.9613889 | 129.8575 | 521 | 13462 |
| Onjo | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Onjō | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Onsen-do | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onsen-dō | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.013889 | 129.2930556 | 3533 | 13452 |
| Onsong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9538889 | 129.8572222 | 406 | 19776 |
| Onsong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Onsong-up | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9538889 | 129.8572222 | 406 | 19776 |
| Onsong-up | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Onsup'yong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.013889 | 129.2158333 | 1663 | 13662 |
| Onsup'yong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0647222 | 129.3666667 | 1092 | 13657 |
| Onsup'yong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.1205556 | 129.6911111 | 351 | 11337 |
| Onsup'yŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.013889 | 129.2158333 | 1663 | 13662 |
| Onsup'yŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0647222 | 129.3666667 | 1092 | 13657 |
| Onsup'yŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.1205556 | 129.6911111 | 351 | 11337 |
| Onsŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9538889 | 129.8572222 | 406 | 19776 |
| Onsŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Onsŏng-ŭp | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9538889 | 129.8572222 | 406 | 19776 |
| Onsŏng-ŭp | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9572222 | 129.9933333 | 275 | 11752 |
| Ont'al-lodongjagu | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9341667 | 129.97 | 423 | 11752 |
| Ont'an-nodongjagu | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.9341667 | 129.97 | 423 | 11752 |
| Ontaishin | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5697222 | 129.6602778 | 0 | 9082 |
| Ook-tong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.5333333 | 130.0166667 | 1046 | 13349 |
| Opok-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8383333 | 129.1888889 | 433 | 13699 |
| Opong-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8383333 | 129.1888889 | 433 | 13699 |
| Orang | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4477778 | 129.6555556 | 9 | 11138 |
| Orang-up | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4477778 | 129.6555556 | 9 | 11138 |
| Orip'yong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8891667 | 129.6308333 | 987 | 13323 |
| Orip'yŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.8891667 | 129.6308333 | 987 | 13323 |
| Oryong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.5116667 | 130.0363889 | 498 | 13349 |
| Oryong-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.3166667 | 129.4 | 2887 | 13392 |
| Oryu-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5333333 | 129.6333333 | 75 | 8320 |
| Oryu-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.6833333 | 129.7166667 | 42 | 6931 |
| Oryu-ri | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.3180556 | 129.6230556 | 1466 | 13355 |
| Oryujong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.3136111 | 129.62 | 1289 | 13355 |
| Oryujŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.3136111 | 129.62 | 1289 | 13355 |
| Osa-gol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4986111 | 129.4122222 | 1850 | 13567 |
| Osa-kol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4986111 | 129.4122222 | 1850 | 13567 |
| Osan-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 40.6536111 | 129.0808333 | 1184 | 15311 |
| Osang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.7133333 | 129.5413889 | 360 | 13517 |
| Osang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.4277778 | 129.6097222 | 108 | 13343 |
| Osang-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.2963889 | 129.7466667 | 3 | 12003 |
| Osang-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.7133333 | 129.5413889 | 360 | 13517 |
| Osang-ni | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.6936111 | 129.6180556 | 144 | 13522 |
| Osongp'yong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5927778 | 129.6041667 | 29 | 13370 |
| Osongp'yŏng | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.5927778 | 129.6041667 | 29 | 13370 |
| Oun-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.9397222 | 129.9411111 | 75 | 9462 |
| Oyong-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.8572222 | 129.7422222 | 269 | 13489 |
| Oyu-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.7811111 | 129.5655556 | 511 | 13507 |
| Oyu-ri | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.7811111 | 129.5655556 | 511 | 13507 |
| Oyŏng-dong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.8572222 | 129.7422222 | 269 | 13489 |
| Oŏk-tong | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 42.5333333 | 130.0166667 | 1046 | 13349 |