| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oyakama | city | Rivers | Nigeria | 5.05 | 6.54 | 393 | 36654 |
| Oye Camp I&II | city | Rivers | Nigeria | 5.29 | 6.43 | 193 | 16646 |
| Oyekiri | city | Rivers | Nigeria | 4.34 | 6.69 | 0 | 5187 |
| Oyeku | city | Rivers | Nigeria | 4.93 | 6.82 | 1669 | 23705 |
| Oyiba | city | Rivers | Nigeria | 5.10 | 6.57 | 830 | 36654 |
| Oyorokoto | city | Rivers | Nigeria | 4.45 | 7.33 | 0 | 77923 |
| Oyu | city | Rivers | Nigeria | 4.73 | 7.20 | 1669 | 14097 |