UpAlphabetical listing of Places in Nigeria
| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
| Onya | city | Cross River | Nigeria | 6.49 | 8.92 | 830 | 19194 |
| Onya | city | Delta | Nigeria | 5.33 | 6.43 | 209 | 10528 |
| Onyadama | city | Cross River | Nigeria | 5.93 | 8.24 | 377 | 18422 |
| Onyadega | city | Kogi | Nigeria | 6.88 | 6.68 | 206 | 7150 |
| Onyagbene | city | Delta | Nigeria | 5.23 | 6.25 | 278 | 22036 |
| Onyajo | city | Benue | Nigeria | 7.75 | 8.40 | 344 | 10534 |
| Onye Okpon | city | Cross River | Nigeria | 5.97 | 8.47 | 400 | 18678 |
| Onyebu | city | Kogi | Nigeria | 8.02 | 7.33 | 830 | 6028 |
| Onyedega | city | Kogi | Nigeria | 6.88 | 6.68 | 206 | 7150 |
| Onyen | city | Cross River | Nigeria | 6.03 | 8.45 | 380 | 17797 |
| Onyen | city | Cross River | Nigeria | 6.07 | 8.48 | 347 | 12583 |
| Onyen Okpon | city | Cross River | Nigeria | 5.97 | 8.47 | 400 | 18678 |
| Onyi | city | Cross River | Nigeria | 6.79 | 8.74 | 830 | 23819 |
| Onyikwa | city | Ebonyi | Nigeria | 6.39 | 8.11 | 403 | 51767 |
| Onyikwa | city | Ebonyi | Nigeria | 6.30 | 8.36 | 341 | 14128 |
| Onyikwa | city | Ebonyi | Nigeria | 6.28 | 8.39 | 328 | 13897 |
| Onyikwa | city | Ebonyi | Nigeria | 6.14 | 8.16 | 347 | 37361 |
| Onyin | city | Ondo | Nigeria | 7.67 | 5.76 | 1669 | 27029 |
| Onyin Akoko | city | Ondo | Nigeria | 7.67 | 5.76 | 1669 | 27029 |
| Onyina | city | Cross River | Nigeria | 6.03 | 8.38 | 830 | 19994 |
| Onyinyiwu | city | Delta | Nigeria | 5.76 | 6.55 | 387 | 10703 |
| Onyirigbo | city | Ebonyi | Nigeria | 6.29 | 8.32 | 341 | 13562 |
| Onyo | city | Cross River | Nigeria | 6.49 | 8.92 | 830 | 19194 |
| Onyo | city | Benue | Nigeria | 7.29 | 8.31 | 830 | 7599 |
| Onyobru | city | Delta | Nigeria | 5.81 | 5.86 | 150 | 36884 |
| Onyobru | city | Delta | Nigeria | 5.82 | 5.85 | 150 | 38521 |
| Onyobru | city | Delta | Nigeria | 5.79 | 5.84 | 141 | 47169 |
| Onyobru | city | Delta | Nigeria | 5.66 | 6.11 | 114 | 16754 |
| Onyobru Inland | city | Delta | Nigeria | 5.82 | 5.85 | 150 | 38521 |
| Onyobru Waterside | city | Delta | Nigeria | 5.79 | 5.84 | 141 | 47169 |
| Onyobru-Oghobeye | city | Delta | Nigeria | 5.81 | 5.86 | 150 | 36884 |
| Onyoma | city | Bayelsa | Nigeria | 4.78 | 6.07 | 830 | 15347 |
| Onyue | city | Benue | Nigeria | 7.04 | 8.06 | 830 | 14096 |
| Onyuwei | city | Benue | Nigeria | 7.04 | 8.06 | 830 | 14096 |
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