| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oniha | city | Edo | Nigeria | 6.46 | 6.28 | 830 | 22015 |
| Onikroga | city | Edo | Nigeria | 6.24 | 5.36 | 137 | 4172 |
| Onogholo | city | Edo | Nigeria | 6.67 | 6.50 | 830 | 9536 |
| Onowa | city | Edo | Nigeria | 6.75 | 6.38 | 941 | 48882 |
| Onumu | city | Edo | Nigeria | 7.36 | 6.12 | 1669 | 16322 |