| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Onia | city | Cuvette | Congo | -0.01 | 15.78 | 1062 | 149 |
| Onia | city | Nord | Cameroon | 9.57 | 13.60 | 1000 | 5215 |
| Onia | city | Haut-Ogooue | Gabon | -0.97 | 13.55 | 1187 | 0 |
| Onia | city | Santarem | Portugal | 38.94 | -8.85 | 9 | 12208 |
| Onia | city | Zulia | Venezuela | 8.83 | -71.97 | 68 | 11476 |
| Onia | city | Merida | Venezuela | 8.67 | -71.76 | 314 | 1033 |
| Onia | city | Merida | Venezuela | 8.60 | -71.69 | 830 | 36195 |
| Onia | city | Arkansas | United States | 35.92 | -92.33 | 843 | |
| Onia Abajo | city | Zulia | Venezuela | 8.79 | -71.96 | 85 | 6211 |
| Onia Arriba | city | Merida | Venezuela | 8.51 | -71.62 | 2509 | 18236 |
| Onia Chiquito | city | Merida | Venezuela | 8.63 | -71.70 | 830 | 31157 |
| Onia-Lundu | city | Kasai Oriental | Congo (Dem. Republic of The)-(Zaire) | -4.05 | 24.62 | 1906 | 1490 |
| Oniadokope | city | Togo | 7.52 | 1.33 | 830 | 4619 | |
| Oniaka | city | Congo (Dem. Republic of The)-(Zaire) | 2.28 | 30.75 | 5869 | 18625 | |
| Oniakopé | city | Togo | 7.55 | 1.35 | 410 | 4619 | |
| Oniama | city | Kasai Oriental | Congo (Dem. Republic of The)-(Zaire) | -4.28 | 23.90 | 1669 | 1229 |
| Onian | city | Cross River | Nigeria | 6.01 | 8.51 | 383 | 13700 |
| Oniangondo | city | Katanga | Congo (Dem. Republic of The)-(Zaire) | -2.58 | 23.20 | 2004 | 298 |
| Oniangue | city | Littoral | Cameroon | 3.75 | 9.67 | 3 | 25628 |
| Oniangé | city | Littoral | Cameroon | 3.75 | 9.67 | 3 | 25628 |
| Onianva | city | Plateaux | Congo | -2.35 | 15.81 | 1669 | 198 |
| Oniao | city | New Zealand | -38.57 | 175.08 | 830 | 149 |