| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ubong | city | Ulsan | Korea, Republic of (South) | 35.40 | 129.35 | 22 | 31111 |
| Uchimi | city | Ulsan | Korea, Republic of (South) | 35.50 | 129.38 | 0 | 333546 |
| Ueumgok | city | Ulsan | Korea, Republic of (South) | 35.65 | 129.39 | 830 | 47453 |
| Ugamal | city | Ulsan | Korea, Republic of (South) | 35.59 | 129.46 | 26 | 63474 |
| Ukcheon | city | Ulsan | Korea, Republic of (South) | 35.59 | 129.23 | 65 | 52917 |
| Ukgok | city | Ulsan | Korea, Republic of (South) | 35.60 | 129.21 | 328 | 25183 |
| Ulsan | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.32 | 49 | 503126 |
| Ulsan Metropolitan City | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.32 | 49 | 503126 |
| Ulsan-si | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.32 | 49 | 503126 |
| Ulsanas | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.32 | 49 | 503126 |
| Um-ni | city | Ulsan | Korea, Republic of (South) | 35.64 | 129.39 | 830 | 65343 |
| Uman | city | Ulsan | Korea, Republic of (South) | 35.61 | 129.08 | 830 | 8461 |
| Ung-ch'on | city | Ulsan | Korea, Republic of (South) | 35.47 | 129.21 | 167 | 19233 |
| Ung-ch’on | city | Ulsan | Korea, Republic of (South) | 35.47 | 129.21 | 167 | 19233 |
| Ungchon | city | Ulsan | Korea, Republic of (South) | 35.47 | 129.21 | 167 | 19233 |
| Urigol | city | Ulsan | Korea, Republic of (South) | 35.60 | 129.26 | 272 | 104437 |
| Urusan | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.32 | 49 | 503126 |
| Utbat | city | Ulsan | Korea, Republic of (South) | 35.65 | 129.23 | 830 | 8513 |
| Utimi | city | Ulsan | Korea, Republic of (South) | 35.50 | 129.38 | 0 | 333546 |
| Utini-ni | city | Ulsan | Korea, Republic of (South) | 35.50 | 129.38 | 0 | 333546 |
| Uumgok | city | Ulsan | Korea, Republic of (South) | 35.64 | 129.39 | 830 | 65343 |
| Uŭm-ni | city | Ulsan | Korea, Republic of (South) | 35.64 | 129.39 | 830 | 65343 |