| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| O-ch'on | city | | Korea, Dem. Peoples Rep. of (North) | 37.9666667 | 125.5833333 | 147 | 26518 |
| O-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.1666667 | 125.4333333 | 131 | 30755 |
| O-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.7166667 | 124.65 | 9 | 20510 |
| O-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.6166667 | 125.5333333 | 39 | 25180 |
| O-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.9166667 | 125.7666667 | 88 | 140425 |
| Oam-dong | city | | Korea, Dem. Peoples Rep. of (North) | 41.1666667 | 126.95 | 2624 | 8352 |
| Oban-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.1 | 124.9833333 | 26 | 20842 |
| Obong-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.75 | 127.2333333 | 255 | 18519 |
| Obong-gol | city | | Korea, Dem. Peoples Rep. of (North) | 39.75 | 127.2333333 | 255 | 18519 |
| Obong-kol | city | | Korea, Dem. Peoples Rep. of (North) | 39.75 | 127.2333333 | 255 | 18519 |
| Obong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.85 | 125.8833333 | 275 | 22960 |
| Obong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.5333333 | 125.9833333 | 803 | 23917 |
| Och'on-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.0333333 | 125.7833333 | 52 | 140257 |
| Och'op-tong | city | | Korea, Dem. Peoples Rep. of (North) | 40.1833333 | 125.7833333 | 731 | 21201 |
| Odok-tong | city | | Korea, Dem. Peoples Rep. of (North) | 38.2166667 | 124.9666667 | 108 | 28247 |
| Odong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.6333333 | 126.1166667 | 429 | 33338 |
| Odonggol | city | | Korea, Dem. Peoples Rep. of (North) | 38.1333333 | 125.05 | 462 | 30519 |
| Odowon | city | | Korea, Dem. Peoples Rep. of (North) | 37.9666667 | 125.4166667 | 318 | 30203 |
| Odujong | city | | Korea, Dem. Peoples Rep. of (North) | 38.8666667 | 125.7666667 | 157 | 113561 |
| Odujŏng | city | | Korea, Dem. Peoples Rep. of (North) | 38.8666667 | 125.7666667 | 157 | 113561 |
| Odun-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.1833333 | 124.9166667 | 26 | 27318 |
| Odun-gol | city | | Korea, Dem. Peoples Rep. of (North) | 39.6 | 125.65 | 82 | 28261 |
| Oduumul | city | | Korea, Dem. Peoples Rep. of (North) | 38.8666667 | 125.7666667 | 157 | 113561 |
| Odŏk-tong | city | | Korea, Dem. Peoples Rep. of (North) | 38.2166667 | 124.9666667 | 108 | 28247 |
| Odŏng-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.6333333 | 126.1166667 | 429 | 33338 |
| Oe-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38 | 125.3166667 | 232 | 30636 |
| Oeam-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.4666667 | 125.4666667 | 68 | 30507 |
| Oebin-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.9333333 | 125.85 | 104 | 140425 |
| Oebip'a-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.9833333 | 125.1333333 | 3 | 22907 |
| Oedumu | city | | Korea, Dem. Peoples Rep. of (North) | 37.9166667 | 125.2666667 | 45 | 25917 |
| Oegwe-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.2 | 125.0166667 | 59 | 30151 |
| Oehwa-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.1833333 | 124.9666667 | 22 | 28312 |
| Oejonsan-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.9 | 125.15 | 16 | 22810 |
| Oejŏnsan-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.9 | 125.15 | 16 | 22810 |
| Oemokch'ong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 41.3222222 | 127.7802778 | 3513 | 5506 |
| Oemokch'ŏng-ni | city | | Korea, Dem. Peoples Rep. of (North) | 41.3222222 | 127.7802778 | 3513 | 5506 |
| Oeryom | city | | Korea, Dem. Peoples Rep. of (North) | 39.9333333 | 125.2833333 | 249 | 22932 |
| Oeryu-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.3 | 126.5 | 2204 | 8464 |
| Oeryŏm | city | | Korea, Dem. Peoples Rep. of (North) | 39.9333333 | 125.2833333 | 249 | 22932 |
| Oesan | city | | Korea, Dem. Peoples Rep. of (North) | 38.1666667 | 124.9 | 16 | 26051 |
| Oesan-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.1 | 125.0333333 | 52 | 23854 |
| Oesanan | city | | Korea, Dem. Peoples Rep. of (North) | 37.9666667 | 125.5666667 | 265 | 26518 |
| Oesang-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.85 | 125.2833333 | 62 | 13470 |
| Oesang-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.7333333 | 125.8166667 | 101 | 23847 |
| Oesich'on-dong | city | | Korea, Dem. Peoples Rep. of (North) | 41.0666667 | 126.3666667 | 725 | 8370 |
| Oesich'ŏn-dong | city | | Korea, Dem. Peoples Rep. of (North) | 41.0666667 | 126.3666667 | 725 | 8370 |
| Oeso-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.6833333 | 125.8666667 | 262 | 28768 |
| Oesong-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.0166667 | 125.75 | 9 | 140257 |
| Oesŏ-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.6833333 | 125.8666667 | 262 | 28768 |
| Oesŏng-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.0166667 | 125.75 | 9 | 140257 |
| Oeyami | city | | Korea, Dem. Peoples Rep. of (North) | 37.8333333 | 125.5833333 | 88 | 23339 |
| Oeyu-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.3 | 126.5 | 2204 | 8464 |
| Ogang-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.5 | 125.75 | 127 | 23945 |
| Ogang-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.5 | 125.75 | 127 | 23945 |
| Ogokch'am | city | | Korea, Dem. Peoples Rep. of (North) | 40.7333333 | 126.6333333 | 2706 | 8412 |
| Ogong | city | | Korea, Dem. Peoples Rep. of (North) | 37.7166667 | 125.2833333 | 0 | 6855 |
| Ogum-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.9166667 | 125.4 | 75 | 26936 |
| Ogum-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.9166667 | 125.65 | 131 | 20319 |
| Ogun-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.7833333 | 125.5333333 | 22 | 14775 |
| Ogung-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.0666667 | 124.9333333 | 833 | 22890 |
| Ogung-nodongjagu | city | | Korea, Dem. Peoples Rep. of (North) | 40.0666667 | 124.9333333 | 833 | 22890 |
| Ogya-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.8666667 | 125.8333333 | 187 | 117483 |
| Ogŭm-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.9166667 | 125.4 | 75 | 26936 |
| Ogŭm-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.9166667 | 125.65 | 131 | 20319 |
| Ogŭn-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.7833333 | 125.5333333 | 22 | 14775 |
| Oha-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.7166667 | 125.6666667 | 679 | 8407 |
| Oha-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.55 | 125.95 | 403 | 31025 |
| Oha-ri | city | | Korea, Dem. Peoples Rep. of (North) | 40.5333333 | 125.1166667 | 902 | 21096 |
| Oha-ri | city | | Korea, Dem. Peoples Rep. of (North) | 40.7166667 | 125.6666667 | 679 | 8407 |
| Ohang | city | | Korea, Dem. Peoples Rep. of (North) | 39.8 | 125.2666667 | 196 | 22974 |
| Ohang | city | | Korea, Dem. Peoples Rep. of (North) | 37.7166667 | 125.2833333 | 0 | 6855 |
| Ohon-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.6 | 126.0166667 | 1699 | 8426 |
| Ohwa-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.1166667 | 125.35 | 104 | 31032 |
| Oi-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.9666667 | 125.3833333 | 95 | 87383 |
| Ojaha-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.2166667 | 125.6833333 | 1010 | 20904 |
| Ojangdok | city | | Korea, Dem. Peoples Rep. of (North) | 38.9686111 | 126.555 | 977 | 28220 |
| Ojangdŏk | city | | Korea, Dem. Peoples Rep. of (North) | 38.9686111 | 126.555 | 977 | 28220 |
| Ojoksan-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.2 | 126.9666667 | 347 | 42928 |
| Ojon-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.8333333 | 127.0333333 | 652 | 15110 |
| Ojung-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.3 | 125.8 | 885 | 31755 |
| Ok-tong | city | | Korea, Dem. Peoples Rep. of (North) | 39.9 | 124.6833333 | 334 | 22946 |
| Ok-tong | city | | Korea, Dem. Peoples Rep. of (North) | 39.6666667 | 125.4 | 68 | 23016 |
| Okch'ang-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 125.7333333 | 593 | 22960 |
| Okch'i-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.7166667 | 126.4333333 | 977 | 23847 |
| Okch'on-ni | city | | Korea, Dem. Peoples Rep. of (North) | 40.2333333 | 125 | 1456 | 22834 |
| Okch'on-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.05 | 125.3166667 | 42 | 29960 |
| Okch'onam | city | | Korea, Dem. Peoples Rep. of (North) | 38.6 | 128.0666667 | 2011 | 15155 |
| Okch'ŏn-ni | city | | Korea, Dem. Peoples Rep. of (North) | 40.2333333 | 125 | 1456 | 22834 |
| Okch'ŏn-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.05 | 125.3166667 | 42 | 29960 |
| Okch'ŏnam | city | | Korea, Dem. Peoples Rep. of (North) | 38.6 | 128.0666667 | 2011 | 15155 |
| Okchang-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.8666667 | 125.9 | 449 | 136183 |
| Okchang-gol | city | | Korea, Dem. Peoples Rep. of (North) | 38.8666667 | 125.9 | 449 | 136183 |
| Okhae-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.95 | 125.6833333 | 72 | 14072 |
| Okhwach'on | city | | Korea, Dem. Peoples Rep. of (North) | 40.3333333 | 128.0166667 | 1236 | 18359 |
| Okkan-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.5333333 | 127.5166667 | 4248 | 18303 |
| Okp'o-ri | city | | Korea, Dem. Peoples Rep. of (North) | 40.4166667 | 125.25 | 1223 | 22764 |
| Okp'ok-tong | city | | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 124.8 | 49 | 22960 |
| Oktong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.8833333 | 126.3166667 | 508 | 37321 |
| Oktong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.1 | 127.1833333 | 2404 | 15047 |
| Oktong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.9666667 | 127.7333333 | 780 | 18452 |
| Oktŏng-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.8833333 | 126.3166667 | 508 | 37321 |
| Om-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.1333333 | 125.8166667 | 623 | 22862 |
| Oman-ni | city | | Korea, Dem. Peoples Rep. of (North) | 40.9666667 | 127.05 | 3704 | 8380 |
| Omgyo-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.8333333 | 125.3166667 | 823 | 22974 |
| Omnyang-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.3 | 125.1 | 180 | 30577 |
| Omong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.85 | 124.8833333 | 134 | 22960 |
| Omp'ung-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.25 | 125.25 | 961 | 22834 |
| Omsu-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.8166667 | 124.8 | 32 | 22857 |
| Omsu-gol | city | | Korea, Dem. Peoples Rep. of (North) | 39.8166667 | 124.8 | 32 | 22857 |
| Omul-li | city | | Korea, Dem. Peoples Rep. of (North) | 40.5166667 | 127.2666667 | 4061 | 18303 |
| Omyonbo | city | | Korea, Dem. Peoples Rep. of (North) | 41.2666667 | 127.6166667 | 2270 | 5510 |
| Omyonp'o | city | | Korea, Dem. Peoples Rep. of (North) | 41.2666667 | 127.6166667 | 2270 | 5510 |
| On-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.2833333 | 125.6166667 | 167 | 30594 |
| On-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.7666667 | 125.9 | 0 | 815 |
| Onch'ae-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.4333333 | 125.7166667 | 13 | 25902 |
| Onch'och'am | city | | Korea, Dem. Peoples Rep. of (North) | 40.1833333 | 126.4333333 | 1154 | 8481 |
| Onch'ukch'am | city | | Korea, Dem. Peoples Rep. of (North) | 40.1666667 | 126.4666667 | 2103 | 8481 |
| Onch'ŭkch'am | city | | Korea, Dem. Peoples Rep. of (North) | 40.1666667 | 126.4666667 | 2103 | 8481 |
| Onchu-do | city | | Korea, Dem. Peoples Rep. of (North) | 40.3166667 | 125.0666667 | 1020 | 22806 |
| Onchū-dō | city | | Korea, Dem. Peoples Rep. of (North) | 40.3166667 | 125.0666667 | 1020 | 22806 |
| Ongam | city | | Korea, Dem. Peoples Rep. of (North) | 38.25 | 125.2 | 137 | 30612 |
| Onggi-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.9 | 127.7166667 | 475 | 16508 |
| Onggijom | city | | Korea, Dem. Peoples Rep. of (North) | 37.7833333 | 125.4833333 | 13 | 17698 |
| Onggijom | city | | Korea, Dem. Peoples Rep. of (North) | 38.9 | 125.8666667 | 108 | 140508 |
| Onggijŏm | city | | Korea, Dem. Peoples Rep. of (North) | 37.7833333 | 125.4833333 | 13 | 17698 |
| Onggijŏm | city | | Korea, Dem. Peoples Rep. of (North) | 38.9 | 125.8666667 | 108 | 140508 |
| Ongjang | city | | Korea, Dem. Peoples Rep. of (North) | 37.9666667 | 125.4 | 623 | 30460 |
| Ongjidok | city | | Korea, Dem. Peoples Rep. of (North) | 41.0333333 | 126.7833333 | 3067 | 8376 |
| Ongjidŏk | city | | Korea, Dem. Peoples Rep. of (North) | 41.0333333 | 126.7833333 | 3067 | 8376 |
| Onhach'am | city | | Korea, Dem. Peoples Rep. of (North) | 40.2 | 126.6833333 | 2568 | 10984 |
| Onjong-do | city | | Korea, Dem. Peoples Rep. of (North) | 38.7 | 125.2333333 | 0 | 26606 |
| Onjung-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.3166667 | 125.0666667 | 1020 | 22806 |
| Onnae | city | | Korea, Dem. Peoples Rep. of (North) | 38.4166667 | 125.4833333 | 39 | 30524 |
| Onsa-ri | city | | Korea, Dem. Peoples Rep. of (North) | 40.1833333 | 126.4333333 | 1154 | 8481 |
| Onsang-dong | city | | Korea, Dem. Peoples Rep. of (North) | 40.25 | 125.2 | 692 | 22834 |
| Onyang | city | | Korea, Dem. Peoples Rep. of (North) | 37.7666667 | 125.6166667 | 0 | 9567 |
| Onyang-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.9666667 | 126.7666667 | 2539 | 30836 |
| Onyo-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.9666667 | 126.7666667 | 2539 | 30836 |
| Onyō-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.9666667 | 126.7666667 | 2539 | 30836 |
| Oo-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.0666667 | 125.4833333 | 55 | 33143 |
| Op'o-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.1833333 | 126.2666667 | 104 | 29395 |
| Op'yong | city | | Korea, Dem. Peoples Rep. of (North) | 37.95 | 125.7 | 0 | 14072 |
| Op'yong | city | | Korea, Dem. Peoples Rep. of (North) | 40.1833333 | 128.1666667 | 656 | 18393 |
| Op'yŏng | city | | Korea, Dem. Peoples Rep. of (North) | 37.95 | 125.7 | 0 | 14072 |
| Op'yŏng | city | | Korea, Dem. Peoples Rep. of (North) | 40.1833333 | 128.1666667 | 656 | 18393 |
| Opsal-li | city | | Korea, Dem. Peoples Rep. of (North) | 40.65 | 126.2166667 | 2746 | 8422 |
| Opsan-ni | city | | Korea, Dem. Peoples Rep. of (North) | 40.65 | 126.2166667 | 2746 | 8422 |
| Ori-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.8166667 | 125.3166667 | 39 | 12680 |
| Orip'yong | city | | Korea, Dem. Peoples Rep. of (North) | 40.05 | 124.95 | 429 | 22890 |
| Orip'yong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 127.4166667 | 36 | 18484 |
| Orip'yŏng | city | | Korea, Dem. Peoples Rep. of (North) | 40.05 | 124.95 | 429 | 22890 |
| Orip'yŏng-ni | city | | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 127.4166667 | 36 | 18484 |
| Orung | city | | Korea, Dem. Peoples Rep. of (North) | 39.2333333 | 126.9833333 | 1377 | 22500 |
| Oryong | city | | Korea, Dem. Peoples Rep. of (North) | 39.7333333 | 124.6 | 19 | 14193 |
| Oryong | city | | Korea, Dem. Peoples Rep. of (North) | 39.8333333 | 125.1833333 | 495 | 22974 |
| Oryong | city | | Korea, Dem. Peoples Rep. of (North) | 39.2333333 | 126.9833333 | 1377 | 22500 |
| Oryong-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.75 | 125.5833333 | 3 | 72458 |
| Oryong-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.85 | 125.85 | 127 | 126910 |
| Oryu-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.7333333 | 125.5666667 | 29 | 72458 |
| Osan-ni | city | | Korea, Dem. Peoples Rep. of (North) | 37.9 | 125.55 | 82 | 29835 |
| Osong-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.9833333 | 124.45 | 32 | 22800 |
| Osong-dong | city | | Korea, Dem. Peoples Rep. of (North) | 37.8833333 | 125.3333333 | 62 | 25088 |
| Osu-ri | city | | Korea, Dem. Peoples Rep. of (North) | 39.0833333 | 125.3166667 | 13 | 28573 |
| Ot'an-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39 | 125.75 | 29 | 140341 |
| Ot'an-ni | city | | Korea, Dem. Peoples Rep. of (North) | 38.15 | 126.9333333 | 272 | 53554 |
| Oun-ni | city | | Korea, Dem. Peoples Rep. of (North) | 40.1333333 | 127.8666667 | 364 | 18404 |
| Ounjak | city | | Korea, Dem. Peoples Rep. of (North) | 39.0333333 | 127.0833333 | 1532 | 15391 |
| Oya-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.9833333 | 125.75 | 39 | 140341 |
| Oyang-dong | city | | Korea, Dem. Peoples Rep. of (North) | 38.6833333 | 125.65 | 39 | 24360 |
| Oyom-mal | city | | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 127.7166667 | 29 | 10919 |
| Oyomch'on | city | | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 127.7166667 | 29 | 10919 |
| Oŏ-dong | city | | Korea, Dem. Peoples Rep. of (North) | 39.0666667 | 125.4833333 | 55 | 33143 |