| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| O-bong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5355556 | 125.9572222 | 344 | 31042 |
| O-ch'on | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.99 | 125.2325 | 36 | 23156 |
| O-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4325 | 125.4197222 | 6 | 30499 |
| O-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0408333 | 125.5027778 | 29 | 52588 |
| O-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3944444 | 125.5702778 | 42 | 31098 |
| O-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5938889 | 125.5866667 | 62 | 27362 |
| O-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4175 | 125.6319444 | 49 | 31078 |
| Obae | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2161111 | 125.9652778 | 62 | 59074 |
| Obong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2744444 | 125.5236111 | 59 | 31154 |
| Obong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5530556 | 125.9455556 | 242 | 31025 |
| Obongni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4369444 | 126.4361111 | 1148 | 31078 |
| Odu-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1991667 | 125.5375 | 252 | 31190 |
| Odui | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5727778 | 126.6163889 | 1932 | 31025 |
| Oe-kajang-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0741667 | 125.4475 | 55 | 32282 |
| Oech'ang | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5558333 | 126.5680556 | 1200 | 31025 |
| Oedae-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.9375 | 126.4013889 | 734 | 57855 |
| Oedong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5777778 | 126.0730556 | 269 | 31025 |
| Oegajang-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0741667 | 125.4475 | 55 | 32282 |
| Oep'yong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4605556 | 126.5566667 | 997 | 31060 |
| Oep'yŏng | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4605556 | 126.5566667 | 997 | 31060 |
| Oesa-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4127778 | 125.55 | 68 | 31098 |
| Oesoch'ang | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1611111 | 125.46 | 196 | 31210 |
| Oeson | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.9219444 | 126.4658333 | 377 | 28439 |
| Oesong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2613889 | 125.9658333 | 124 | 32933 |
| Oesonghyon | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2577778 | 126.1222222 | 232 | 32539 |
| Oesŏn | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.9219444 | 126.4658333 | 377 | 28439 |
| Oesŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2613889 | 125.9658333 | 124 | 32933 |
| Oesŏnghyŏn | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2577778 | 126.1222222 | 232 | 32539 |
| Oeu-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1991667 | 125.5375 | 252 | 31190 |
| Ogo-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3080556 | 125.5680556 | 9 | 31134 |
| Oguch'am | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7302778 | 126.0525 | 646 | 30948 |
| Ogum-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1458333 | 125.6313889 | 55 | 83385 |
| Ogyo-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3363889 | 125.4744444 | 13 | 30672 |
| Ogyuri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8597222 | 126.3802778 | 836 | 30334 |
| Ogŭm-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1458333 | 125.6313889 | 55 | 83385 |
| Oin-gol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5183333 | 126.4483333 | 1089 | 31042 |
| Ok-kol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.6305556 | 126.2663889 | 561 | 30989 |
| Okch'on-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.9108333 | 126.4419444 | 1348 | 30874 |
| Okch'onch'am | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8377778 | 126.0108333 | 177 | 25070 |
| Okch'ŏn-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.9108333 | 126.4419444 | 1348 | 30874 |
| Okch'ŏnch'am | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8377778 | 126.0108333 | 177 | 25070 |
| Okchon-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2561111 | 125.885 | 232 | 33947 |
| Okchong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2188889 | 125.6358333 | 206 | 73138 |
| Okchong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1658333 | 126.2569444 | 505 | 47310 |
| Okchŏn-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2561111 | 125.885 | 232 | 33947 |
| Okchŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2188889 | 125.6358333 | 206 | 73138 |
| Okchŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1658333 | 126.2569444 | 505 | 47310 |
| Okha | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.9775 | 126.4075 | 1259 | 67312 |
| Oksang-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8666667 | 126.3538889 | 836 | 28961 |
| Omnamu-gol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8552778 | 125.2113889 | 95 | 30796 |
| Omsu-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8552778 | 125.2113889 | 95 | 30796 |
| Onch'ang-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.9783333 | 126.7625 | 1948 | 30836 |
| Onch'on | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Onch'on | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2016667 | 126.8327778 | 1099 | 31188 |
| Onch'on-up | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Onch'ŏn | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Onch'ŏn | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2016667 | 126.8327778 | 1099 | 31188 |
| Onch'ŏn-up | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Ondammal | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4888889 | 126.6288889 | 1505 | 30407 |
| Ong-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1988889 | 126.1008333 | 387 | 83176 |
| Ongjom | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0913889 | 125.4236111 | 213 | 31228 |
| Ongjŏm | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0913889 | 125.4236111 | 213 | 31228 |
| Ongsong-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3555556 | 125.4441667 | 49 | 25167 |
| Ongsŏng-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3555556 | 125.4441667 | 49 | 25167 |
| Ongyo-do | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3494444 | 126.2613889 | 436 | 31116 |
| Onhung-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5208333 | 125.6925 | 751 | 31042 |
| Onhŭng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5208333 | 125.6925 | 751 | 31042 |
| Onjong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3188889 | 126.0752778 | 98 | 31134 |
| Onjong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7713889 | 126.6791667 | 1768 | 30500 |
| Onjong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8755556 | 125.2197222 | 42 | 30602 |
| Onjong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Onjong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3188889 | 126.0752778 | 98 | 31134 |
| Onjong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2077778 | 126.8227778 | 1158 | 31188 |
| Onjong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2016667 | 126.8327778 | 1099 | 31188 |
| Onjŏng | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3188889 | 126.0752778 | 98 | 31134 |
| Onjŏng | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7713889 | 126.6791667 | 1768 | 30500 |
| Onjŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8755556 | 125.2197222 | 42 | 30602 |
| Onjŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Onjŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3188889 | 126.0752778 | 98 | 31134 |
| Onjŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2077778 | 126.8227778 | 1158 | 31188 |
| Onjŏng-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2016667 | 126.8327778 | 1099 | 31188 |
| Onsang-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4936111 | 125.6922222 | 672 | 31060 |
| Onsei-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8802778 | 125.2247222 | 29 | 30602 |
| Onsei-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2016667 | 126.8327778 | 1099 | 31188 |
| Onsen-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 38.8755556 | 125.2197222 | 42 | 30602 |
| Op'a-ri | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3308333 | 125.6366667 | 265 | 31469 |
| Op'a-rodongjagu | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3308333 | 125.6366667 | 265 | 31469 |
| Ori-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0616667 | 125.3813889 | 141 | 31476 |
| Ori-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5452778 | 125.8916667 | 324 | 31025 |
| Oribau | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2527778 | 126.3836111 | 659 | 31154 |
| Oribawi | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2527778 | 126.3836111 | 659 | 31154 |
| Orimak-kol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8333333 | 126.3597222 | 744 | 30680 |
| Oryang-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2947222 | 125.4286111 | 68 | 22473 |
| Oryong-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2947222 | 125.4286111 | 68 | 22473 |
| Oryong-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8936111 | 126.4186111 | 1811 | 30874 |
| Oryong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5522222 | 125.5569444 | 19 | 29140 |
| Oryong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4816667 | 125.6097222 | 118 | 31060 |
| Oryugae | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2058333 | 126.7283333 | 1292 | 31012 |
| Osang-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5669444 | 125.9516667 | 288 | 31025 |
| Osong-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.19 | 125.3922222 | 13 | 28745 |
| Osong-gol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.19 | 125.3922222 | 13 | 28745 |
| Osong-kol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.19 | 125.3922222 | 13 | 28745 |
| Osong-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4841667 | 125.5036111 | 39 | 31060 |
| Osongjong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.48 | 125.8319444 | 295 | 31060 |
| Osongjŏng | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.48 | 125.8319444 | 295 | 31060 |
| Oul-li | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3433333 | 125.6088889 | 236 | 31116 |
| Oun-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.0405556 | 125.525 | 45 | 52588 |
| Oun-ni | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3433333 | 125.6088889 | 236 | 31116 |
| Oyong-dong | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7872222 | 126.4236111 | 800 | 30930 |
| Ozan | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.1047222 | 125.3672222 | 75 | 31032 |