| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Udae | city | Cholla-bukto | Korea, Republic of (South) | 35.6255556 | 126.8688889 | 22 | 28256 |
| Udat'umsil | city | Kyongsang-bukto | Korea, Republic of (South) | 36.5183333 | 128.5852778 | 570 | 17585 |
| Udat'ŭmsil | city | Kyongsang-bukto | Korea, Republic of (South) | 36.5183333 | 128.5852778 | 570 | 17585 |
| Udillon | city | Kangwon-do | Korea, Republic of (South) | 37.2925 | 128.0197222 | 1489 | 9367 |
| Udmal | city | Kangwon-do | Korea, Republic of (South) | 38.0622222 | 127.7005556 | 606 | 9275 |
| Udo | city | | Korea, Republic of (South) | 34.7166667 | 127.3166667 | 0 | 13726 |
| Udong-ni | city | Cholla-bukto | Korea, Republic of (South) | 35.6222222 | 126.8444444 | 22 | 28271 |
| Udu | city | Cholla-namdo | Korea, Republic of (South) | 34.3847222 | 126.8691667 | 22 | 9960 |
| Udu | city | | Korea, Republic of (South) | 34.45 | 127.1 | 0 | 6753 |
| Udu | city | Cholla-namdo | Korea, Republic of (South) | 34.6305556 | 127.4913889 | 0 | 8951 |
| Udu | city | Kangwon-do | Korea, Republic of (South) | 37.9 | 127.75 | 252 | 9294 |
| Udu-dong | city | Kangwon-do | Korea, Republic of (South) | 37.9 | 127.75 | 252 | 9294 |
| Udu-il-tong | city | Kangwon-do | Korea, Republic of (South) | 37.9 | 127.75 | 252 | 9294 |
| Udu-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.3847222 | 126.8691667 | 22 | 9960 |
| Udu-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.6305556 | 127.4913889 | 0 | 8951 |
| Udu-ri | city | Kangwon-do | Korea, Republic of (South) | 37.9 | 127.75 | 252 | 9294 |
| Udu-ri | city | Cholla-namdo | Korea, Republic of (South) | 34.7177778 | 127.7777778 | 32 | 6720 |
| Udumi | city | Ch'ungch'ong-bukto | Korea, Republic of (South) | 36.2666667 | 127.6833333 | 738 | 22292 |
| Udup'o | city | Kyongsang-namdo | Korea, Republic of (South) | 34.9919444 | 128.4727778 | 0 | 13730 |
| Udup'o-ri | city | Kyongsang-namdo | Korea, Republic of (South) | 34.9919444 | 128.4727778 | 0 | 13730 |
| Uduryong | city | Kyongsang-namdo | Korea, Republic of (South) | 35.8519444 | 127.9366667 | 1696 | 30446 |
| Uduryŏng | city | Kyongsang-namdo | Korea, Republic of (South) | 35.8519444 | 127.9366667 | 1696 | 30446 |
| Udyangji | city | Kangwon-do | Korea, Republic of (South) | 37.1166667 | 128.6413889 | 1158 | 9392 |
| Udŏng-ni | city | Cholla-bukto | Korea, Republic of (South) | 35.6222222 | 126.8444444 | 22 | 28271 |