| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Обонни | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.70 | 124.62 | 13 | 16085 |
| Обоннодонджагу | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.86 | 124.74 | 209 | 20951 |
| Оджонни | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 40.22 | 124.53 | 6 | 64579 |
| Онджин | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.93 | 125.36 | 39 | 20795 |
| Ончжин | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.93 | 125.36 | 39 | 20795 |
| Оран | city | Hambuk | Korea, Dem. Peoples Rep. of (North) | 41.45 | 129.66 | 9 | 4448 |
| Охынни | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.98 | 124.43 | 19 | 55955 |