| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oi-ri | city | | Korea, Dem. Peoples Rep. of (North) | 38.9666667 | 125.3833333 | 95 | 87383 |
| Oibang | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.3108333 | 128.3486111 | 1797 | 18359 |
| Oikkot | city | P'yongan-bukto | Korea, Dem. Peoples Rep. of (North) | 39.5855556 | 125.3441667 | 13 | 21574 |
| Oil-li | city | Yanggang-do | Korea, Dem. Peoples Rep. of (North) | 41.2677778 | 128.2808333 | 3221 | 5510 |
| Oil-li | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.1833333 | 128.6 | 0 | 10359 |
| Oil-lodongjagu | city | Chagang-do | Korea, Dem. Peoples Rep. of (North) | 40.9836111 | 126.7933333 | 2063 | 8380 |
| Oil-lodongjagu | city | Yanggang-do | Korea, Dem. Peoples Rep. of (North) | 41.2677778 | 128.2808333 | 3221 | 5510 |
| Oil-nodongjagu | city | Chagang-do | Korea, Dem. Peoples Rep. of (North) | 40.9836111 | 126.7933333 | 2063 | 8380 |
| Oime | city | Hwanghae-namdo | Korea, Dem. Peoples Rep. of (North) | 38.18 | 125.8688889 | 528 | 30536 |
| Oin-dong | city | Hwanghae-bukto | Korea, Dem. Peoples Rep. of (North) | 38.165 | 126.5036111 | 200 | 24677 |
| Oin-dong | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.4866667 | 128.3136111 | 1469 | 18316 |
| Oin-gol | city | P'yongan-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5183333 | 126.4483333 | 1089 | 31042 |
| Oin-gol | city | Hamgyong-bukto | Korea, Dem. Peoples Rep. of (North) | 41.0452778 | 129.3497222 | 839 | 13657 |