| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Osal-li | city | Gyeonggi | Korea, Republic of (South) | 37.33 | 127.15 | 830 | 292512 |
| Osal-li | city | Gyeonggi | Korea, Republic of (South) | 37.19 | 127.10 | 127 | 169525 |
| Osalli | city | Gyeonggi | Korea, Republic of (South) | 37.33 | 127.15 | 830 | 292512 |
| Osalli | city | Gyeonggi | Korea, Republic of (South) | 37.19 | 127.10 | 127 | 169525 |
| Osan | city | Gyeonggi | Korea, Republic of (South) | 37.15 | 127.07 | 55 | 181938 |
| Osan | city | Gyeonggi | Korea, Republic of (South) | 37.24 | 127.56 | 196 | 50355 |
| Osan-dong | city | Gyeonggi | Korea, Republic of (South) | 37.70 | 127.22 | 830 | 90666 |
| Osan-ni | city | Gyeonggi | Korea, Republic of (South) | 37.15 | 127.07 | 55 | 181938 |
| Osan-ri | city | Gyeonggi | Korea, Republic of (South) | 37.33 | 127.15 | 830 | 292512 |
| Osan-ri | city | Gyeonggi | Korea, Republic of (South) | 37.19 | 127.10 | 127 | 169525 |
| Osandong | city | Gyeonggi | Korea, Republic of (South) | 37.81 | 126.90 | 308 | 26681 |
| Osang-gol | city | Gyeonggi | Korea, Republic of (South) | 37.15 | 126.97 | 213 | 45500 |
| Oseong | city | Gyeonggi | Korea, Republic of (South) | 37.01 | 126.98 | 26 | 19737 |
| Oseonggye | city | Gyeonggi | Korea, Republic of (South) | 37.43 | 127.29 | 180 | 48158 |
| Oseontae | city | Gyeonggi | Korea, Republic of (South) | 37.81 | 126.69 | 200 | 17901 |
| Osong | city | Gyeonggi | Korea, Republic of (South) | 37.01 | 126.98 | 26 | 19737 |
| Osonggye | city | Gyeonggi | Korea, Republic of (South) | 37.43 | 127.29 | 180 | 48158 |
| Osont'ae | city | Gyeonggi | Korea, Republic of (South) | 37.81 | 126.69 | 200 | 17901 |
| Osoroji | city | Gyeonggi | Korea, Republic of (South) | 37.25 | 126.62 | 29 | 2511 |
| Ossaem-gol | city | Gyeonggi | Korea, Republic of (South) | 37.08 | 127.60 | 328 | 11151 |
| Osŏnt’ae | city | Gyeonggi | Korea, Republic of (South) | 37.81 | 126.69 | 200 | 17901 |