| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| O-dong | city | | Korea, Republic of (South) | 34.8166667 | 127.05 | 570 | 21354 |
| O-dong | city | | Korea, Republic of (South) | 35.55 | 127.3 | 446 | 28285 |
| O-ri | city | | Korea, Republic of (South) | 34.65 | 127.3833333 | 154 | 19275 |
| Oaebeng-ni | city | | Korea, Republic of (South) | 34.7 | 127.4333333 | 0 | 8275 |
| Oaeno-ri | city | | Korea, Republic of (South) | 34.6833333 | 127.3333333 | 285 | 14549 |
| Oaeo-ri | city | | Korea, Republic of (South) | 35.7666667 | 127.5 | 1302 | 28210 |
| Obi-ri | city | | Korea, Republic of (South) | 34.9166667 | 128.6166667 | 150 | 21072 |
| Obong-ni | city | | Korea, Republic of (South) | 35.2833333 | 126.9833333 | 328 | 222911 |
| Och'i | city | | Korea, Republic of (South) | 34.5 | 127.3166667 | 62 | 11946 |
| Och'on | city | | Korea, Republic of (South) | 34.9166667 | 127.5 | 13 | 20774 |
| Och'on | city | | Korea, Republic of (South) | 34.7333333 | 127.5833333 | 183 | 9744 |
| Och'on-dong | city | | Korea, Republic of (South) | 34.9166667 | 127.5 | 13 | 20774 |
| Och'on-ni | city | | Korea, Republic of (South) | 34.9166667 | 127.5 | 13 | 20774 |
| Och'ŏn | city | | Korea, Republic of (South) | 34.9166667 | 127.5 | 13 | 20774 |
| Och'ŏn | city | | Korea, Republic of (South) | 34.7333333 | 127.5833333 | 183 | 9744 |
| Och'ŏn-dong | city | | Korea, Republic of (South) | 34.9166667 | 127.5 | 13 | 20774 |
| Och'ŏn-ni | city | | Korea, Republic of (South) | 34.9166667 | 127.5 | 13 | 20774 |
| Odo | city | | Korea, Republic of (South) | 34.7166667 | 127.3833333 | 0 | 10168 |
| Odo-ri | city | | Korea, Republic of (South) | 34.7166667 | 127.3833333 | 0 | 10168 |
| Oe-dong | city | | Korea, Republic of (South) | 34.9666667 | 127.2333333 | 954 | 21309 |
| Oebaek | city | | Korea, Republic of (South) | 34.8725 | 127.1458333 | 449 | 21344 |
| Oebaekkok | city | | Korea, Republic of (South) | 34.8725 | 127.1458333 | 449 | 21344 |
| Oebaeksil | city | | Korea, Republic of (South) | 34.8725 | 127.1458333 | 449 | 21344 |
| Oebaeng-ni | city | | Korea, Republic of (South) | 34.7 | 127.4333333 | 0 | 8275 |
| Oech'o-ri | city | | Korea, Republic of (South) | 34.55 | 127.3833333 | 708 | 17071 |
| Oech'on | city | | Korea, Republic of (South) | 35.2 | 126.8666667 | 127 | 486162 |
| Oech'osa-dong | city | | Korea, Republic of (South) | 35.9333333 | 127.35 | 1732 | 28154 |
| Oech'ŏsa-dong | city | | Korea, Republic of (South) | 35.9333333 | 127.35 | 1732 | 28154 |
| Oedok | city | | Korea, Republic of (South) | 35.0166667 | 126.3833333 | 26 | 11144 |
| Oedŏk | city | | Korea, Republic of (South) | 35.0166667 | 126.3833333 | 26 | 11144 |
| Oegu | city | | Korea, Republic of (South) | 35.1166667 | 127.45 | 403 | 21277 |
| Oegu-ri | city | | Korea, Republic of (South) | 35.1166667 | 127.45 | 403 | 21277 |
| Oegum | city | | Korea, Republic of (South) | 34.9833333 | 127.7166667 | 13 | 18371 |
| Oegwangch'on | city | | Korea, Republic of (South) | 35.0666667 | 127.2333333 | 272 | 21288 |
| Oegwangch'ŏn | city | | Korea, Republic of (South) | 35.0666667 | 127.2333333 | 272 | 21288 |
| Oegyo | city | | Korea, Republic of (South) | 34.9 | 127.15 | 370 | 21333 |
| Oegŭm | city | | Korea, Republic of (South) | 34.9833333 | 127.7166667 | 13 | 18371 |
| Oehwa | city | | Korea, Republic of (South) | 35.9833333 | 126.9666667 | 6 | 28137 |
| Oehwa-ri | city | | Korea, Republic of (South) | 35.9833333 | 126.9666667 | 6 | 28137 |
| Oehwang | city | | Korea, Republic of (South) | 35.2833333 | 126.75 | 98 | 36841 |
| Oehwang | city | | Korea, Republic of (South) | 35.8666667 | 126.9333333 | 9 | 28086 |
| Oehwang-ni | city | | Korea, Republic of (South) | 35.8666667 | 126.9333333 | 9 | 28086 |
| Oehwangsan | city | | Korea, Republic of (South) | 35.8666667 | 126.9333333 | 9 | 28086 |
| Oehyonhwa | city | | Korea, Republic of (South) | 35.0333333 | 126.4333333 | 62 | 15753 |
| Oehyŏnhwa | city | | Korea, Republic of (South) | 35.0333333 | 126.4333333 | 62 | 15753 |
| Oejang | city | | Korea, Republic of (South) | 34.9666667 | 127.2333333 | 954 | 21309 |
| Oejin | city | | Korea, Republic of (South) | 34.8666667 | 127.6 | 0 | 12459 |
| Oejungsan | city | | Korea, Republic of (South) | 35.6166667 | 127.7166667 | 1991 | 41876 |
| Oenam-ni | city | | Korea, Republic of (South) | 35.2166667 | 126.3666667 | 3 | 13111 |
| Oeoch'on | city | | Korea, Republic of (South) | 35.7666667 | 127.5 | 1302 | 28210 |
| Oep'an | city | | Korea, Republic of (South) | 34.9 | 127.15 | 370 | 21333 |
| Oerae | city | | Korea, Republic of (South) | 34.6666667 | 127.05 | 52 | 17852 |
| Oero-ri | city | | Korea, Republic of (South) | 34.6833333 | 127.3333333 | 285 | 14549 |
| Oesin-ni | city | | Korea, Republic of (South) | 35.6666667 | 126.9166667 | 16 | 28239 |
| Oesong | city | | Korea, Republic of (South) | 34.9833333 | 127.2666667 | 833 | 21309 |
| Oesong-ni | city | | Korea, Republic of (South) | 35.9166667 | 126.65 | 3 | 18343 |
| Oesongsan | city | | Korea, Republic of (South) | 35.9166667 | 126.65 | 3 | 18343 |
| Oesŏng-ni | city | | Korea, Republic of (South) | 35.9166667 | 126.65 | 3 | 18343 |
| Oesŏngsan | city | | Korea, Republic of (South) | 35.9166667 | 126.65 | 3 | 18343 |
| Ogang-ni | city | | Korea, Republic of (South) | 35.0333333 | 126.75 | 16 | 21298 |
| Ogok | city | | Korea, Republic of (South) | 34.9 | 127.45 | 305 | 20245 |
| Ogong-ni | city | | Korea, Republic of (South) | 35.7 | 126.8 | 22 | 28215 |
| Ogong-ni | city | | Korea, Republic of (South) | 34.9 | 127.45 | 305 | 20245 |
| Ogong-ni | city | | Korea, Republic of (South) | 34.8833333 | 127.8833333 | 36 | 24165 |
| Oho | city | | Korea, Republic of (South) | 34.8333333 | 127.15 | 390 | 21354 |
| Ojae | city | | Korea, Republic of (South) | 34.5 | 127.3166667 | 62 | 11946 |
| Ojon | city | | Korea, Republic of (South) | 35.15 | 126.4166667 | 62 | 17981 |
| Ok-tong | city | | Korea, Republic of (South) | 35.0833333 | 126.5833333 | 52 | 21288 |
| Ok-tong | city | | Korea, Republic of (South) | 34.9166667 | 127.9166667 | 101 | 14977 |
| Ok-tong | city | | Korea, Republic of (South) | 34.8666667 | 128.55 | 1069 | 30381 |
| Okch'ae | city | | Korea, Republic of (South) | 34.9666667 | 127.2 | 557 | 21309 |
| Okcha | city | | Korea, Republic of (South) | 34.9666667 | 127.2 | 557 | 21309 |
| Okp'o | city | | Korea, Republic of (South) | 34.7 | 128.6166667 | 0 | 8057 |
| Oksan | city | | Korea, Republic of (South) | 35.9333333 | 126.75 | 42 | 24965 |
| Oksan-ni | city | | Korea, Republic of (South) | 35.9333333 | 126.75 | 42 | 24965 |
| Oksan-ni | city | | Korea, Republic of (South) | 34.8666667 | 128.5666667 | 141 | 30381 |
| Oksong-ni | city | | Korea, Republic of (South) | 35.7833333 | 127 | 85 | 28210 |
| Oksul-li | city | | Korea, Republic of (South) | 35.1666667 | 126.3666667 | 0 | 11178 |
| Oksŏng-ni | city | | Korea, Republic of (South) | 35.7833333 | 127 | 85 | 28210 |
| Oksŭl-li | city | | Korea, Republic of (South) | 35.1666667 | 126.3666667 | 0 | 11178 |
| Olmok | city | | Korea, Republic of (South) | 35.9833333 | 127.6166667 | 1259 | 27646 |
| Omae | city | | Korea, Republic of (South) | 35.1833333 | 126.9 | 118 | 726518 |
| Oman-ni | city | | Korea, Republic of (South) | 34.8 | 127.7333333 | 269 | 14703 |
| On'go | city | | Korea, Republic of (South) | 35.2833333 | 126.5 | 75 | 21361 |
| On'go-ri | city | | Korea, Republic of (South) | 35.2833333 | 126.5 | 75 | 21361 |
| Ondolgae | city | | Korea, Republic of (South) | 34.8833333 | 127.7333333 | 0 | 6227 |
| Ondolp'o | city | | Korea, Republic of (South) | 34.8833333 | 127.7333333 | 0 | 6227 |
| Ondong | city | | Korea, Republic of (South) | 34.8833333 | 127.7333333 | 0 | 6227 |
| Ondong-ni | city | | Korea, Republic of (South) | 34.7666667 | 127.3333333 | 16 | 16972 |
| Ong-dong | city | | Korea, Republic of (South) | 35.5333333 | 126.9 | 357 | 28268 |
| Ongam-ni | city | | Korea, Republic of (South) | 34.7833333 | 127.3833333 | 3 | 8707 |
| Ongmyong | city | | Korea, Republic of (South) | 34.8666667 | 128.7333333 | 0 | 17404 |
| Ongmyong-ni | city | | Korea, Republic of (South) | 34.8666667 | 128.7333333 | 0 | 17404 |
| Ongmyonggol | city | | Korea, Republic of (South) | 34.8666667 | 128.7333333 | 0 | 17404 |
| Ongmyŏng | city | | Korea, Republic of (South) | 34.8666667 | 128.7333333 | 0 | 17404 |
| Ongmyŏng-ni | city | | Korea, Republic of (South) | 34.8666667 | 128.7333333 | 0 | 17404 |
| Ongmyŏnggol | city | | Korea, Republic of (South) | 34.8666667 | 128.7333333 | 0 | 17404 |
| Ongp'o | city | | Korea, Republic of (South) | 34.7333333 | 127.25 | 0 | 10818 |
| Onmok | city | | Korea, Republic of (South) | 35.35 | 126.45 | 314 | 20341 |
| Onp'o | city | | Korea, Republic of (South) | 35.6 | 126.4833333 | 9 | 10606 |
| Onp'o-ri | city | | Korea, Republic of (South) | 35.6 | 126.4833333 | 9 | 10606 |
| Onsekiho | city | | Korea, Republic of (South) | 34.8833333 | 127.7333333 | 0 | 6227 |
| Ontoruho | city | | Korea, Republic of (South) | 34.8833333 | 127.7333333 | 0 | 6227 |
| Op'o | city | | Korea, Republic of (South) | 34.7 | 128.6166667 | 0 | 8057 |
| Optong | city | | Korea, Republic of (South) | 34.9666667 | 127.5 | 610 | 21290 |
| Optong-ni | city | | Korea, Republic of (South) | 34.9666667 | 127.5 | 610 | 21290 |
| Oram-ni | city | | Korea, Republic of (South) | 35.1 | 126.3166667 | 52 | 9547 |
| Ore-ch'on | city | | Korea, Republic of (South) | 35.2666667 | 127.0833333 | 511 | 25017 |
| Ori-ri | city | | Korea, Republic of (South) | 34.65 | 127.3833333 | 154 | 19275 |
| Orim | city | | Korea, Republic of (South) | 34.7666667 | 127.7166667 | 203 | 15153 |
| Orim-ni | city | | Korea, Republic of (South) | 34.7666667 | 127.7166667 | 203 | 15153 |
| Orung-ni | city | | Korea, Republic of (South) | 35.1833333 | 127.3666667 | 538 | 21256 |
| Orye-ch'on | city | | Korea, Republic of (South) | 35.2666667 | 127.0833333 | 511 | 25017 |
| Oryong | city | | Korea, Republic of (South) | 34.9 | 127.4833333 | 147 | 18700 |
| Oryong-dong | city | | Korea, Republic of (South) | 35.05 | 126.25 | 26 | 9486 |
| Oryongi | city | | Korea, Republic of (South) | 34.8333333 | 127.15 | 390 | 21354 |
| Oryu | city | | Korea, Republic of (South) | 34.9666667 | 127.6833333 | 636 | 19846 |
| Oryu-ch'on | city | | Korea, Republic of (South) | 35.1 | 126.3166667 | 52 | 9547 |
| Oryu-dong | city | | Korea, Republic of (South) | 35.1 | 126.3166667 | 52 | 9547 |
| Oryuch'on | city | | Korea, Republic of (South) | 34.4333333 | 127.2166667 | 0 | 6167 |
| Oryŏngi | city | | Korea, Republic of (South) | 34.8333333 | 127.15 | 390 | 21354 |
| Orŭng-ni | city | | Korea, Republic of (South) | 35.1833333 | 127.3666667 | 538 | 21256 |
| Osan | city | | Korea, Republic of (South) | 35.9333333 | 126.9166667 | 6 | 28058 |
| Osan | city | | Korea, Republic of (South) | 34.9666667 | 127.0166667 | 935 | 21309 |
| Osan | city | | Korea, Republic of (South) | 35.0666667 | 127.2833333 | 288 | 21288 |
| Osan | city | | Korea, Republic of (South) | 35.8333333 | 127.35 | 1164 | 28196 |
| Osan-ni | city | | Korea, Republic of (South) | 35.9333333 | 126.9166667 | 6 | 28058 |
| Osan-ni | city | | Korea, Republic of (South) | 34.9666667 | 127.0166667 | 935 | 21309 |
| Osan-ni | city | | Korea, Republic of (South) | 35.0666667 | 127.2833333 | 288 | 21288 |
| Osan-ni | city | | Korea, Republic of (South) | 34.6333333 | 127.4666667 | 223 | 8951 |
| Osan-ri | city | | Korea, Republic of (South) | 35.9333333 | 126.9166667 | 6 | 28058 |
| Oshu-ri | city | | Korea, Republic of (South) | 34.7666667 | 127.4 | 0 | 8707 |
| Osi | city | | Korea, Republic of (South) | 34.9 | 127.0666667 | 931 | 21333 |
| Osi-ri | city | | Korea, Republic of (South) | 34.9 | 127.0666667 | 931 | 21333 |
| Osil | city | | Korea, Republic of (South) | 34.8833333 | 127.8833333 | 36 | 24165 |
| Osom | city | | Korea, Republic of (South) | 34.7166667 | 127.3833333 | 0 | 10168 |
| Osong | city | | Korea, Republic of (South) | 34.8166667 | 128.6 | 55 | 32707 |
| Osong-ni | city | | Korea, Republic of (South) | 34.8166667 | 128.6 | 55 | 32707 |
| Osu-ri | city | | Korea, Republic of (South) | 34.8333333 | 128.6 | 26 | 32707 |
| Osŏm | city | | Korea, Republic of (South) | 34.7166667 | 127.3833333 | 0 | 10168 |
| Ou | city | | Korea, Republic of (South) | 35.9666667 | 127.1833333 | 131 | 28137 |
| Ou-ri | city | | Korea, Republic of (South) | 35.9666667 | 127.1833333 | 131 | 28137 |
| Oun-dong | city | | Korea, Republic of (South) | 35.05 | 126.3666667 | 3 | 7468 |
| Oun-dong | city | | Korea, Republic of (South) | 35.75 | 127.4833333 | 1689 | 28224 |
| Oung-dong | city | | Korea, Republic of (South) | 35.05 | 126.3666667 | 3 | 7468 |
| Oyong | city | | Korea, Republic of (South) | 34.9 | 127.4833333 | 147 | 18700 |
| Oyong-dong | city | | Korea, Republic of (South) | 35.05 | 126.25 | 26 | 9486 |
| Oyu-dong | city | | Korea, Republic of (South) | 35.1 | 126.3166667 | 52 | 9547 |