| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| On'gok-tong | city | Gyeongnam | Korea, Republic of (South) | 35.81 | 127.85 | 2509 | 4002 |
| Ong-gol | city | Gyeongnam | Korea, Republic of (South) | 35.15 | 128.38 | 830 | 38300 |
| Onggigol | city | Gyeongnam | Korea, Republic of (South) | 35.29 | 129.02 | 830 | 193089 |
| Onggijom | city | Gyeongnam | Korea, Republic of (South) | 35.37 | 128.28 | 380 | 7450 |
| Ongmae-ri | city | Gyeongnam | Korea, Republic of (South) | 35.51 | 127.77 | 830 | 6705 |
| Ongnyong-dong | city | Gyeongnam | Korea, Republic of (South) | 35.57 | 128.45 | 82 | 13243 |
| Onp'o | city | Gyeongnam | Korea, Republic of (South) | 34.88 | 128.03 | 308 | 8798 |
| Onsu-gol | city | Gyeongnam | Korea, Republic of (South) | 35.12 | 128.44 | 154 | 112689 |
| Onsu-ri | city | Gyeongnam | Korea, Republic of (South) | 35.12 | 128.44 | 154 | 112689 |
| Onyang-gol | city | Gyeongnam | Korea, Republic of (South) | 35.63 | 128.19 | 173 | 7199 |
| On’gok-tong | city | Gyeongnam | Korea, Republic of (South) | 35.81 | 127.85 | 2509 | 4002 |