| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 오니산리 | city | Incheon | Korea, Republic of (South) | 37.66 | 126.62 | 26 | 65242 |
| 오류골 | city | Incheon | Korea, Republic of (South) | 37.63 | 126.50 | 144 | 22711 |
| 오류내 | city | Incheon | Korea, Republic of (South) | 37.76 | 126.45 | 288 | 8373 |
| 오류동 | city | Incheon | Korea, Republic of (South) | 37.59 | 126.62 | 0 | 116585 |
| 오류동 | city | Incheon | Korea, Republic of (South) | 37.59 | 126.73 | 91 | 339041 |
| 오류리 | city | Incheon | Korea, Republic of (South) | 37.59 | 126.62 | 0 | 116585 |
| 오미 | city | Incheon | Korea, Republic of (South) | 37.81 | 126.24 | 32 | 4689 |
| 오산 | city | Incheon | Korea, Republic of (South) | 37.74 | 126.39 | 62 | 7102 |
| 오수물 | city | Incheon | Korea, Republic of (South) | 37.77 | 126.41 | 36 | 8085 |
| 오촌동 | city | Incheon | Korea, Republic of (South) | 37.81 | 126.42 | 42 | 6943 |