| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Onlada | city | Chhattisgarh | India | 20.54 | 82.30 | 1236 | 8502 |
| Onlagota | city | Sonora | Mexico | 27.46 | -110.06 | 101 | 29397 |
| Onlaj | city | Huehuetenango | Guatemala | 15.60 | -91.65 | 7975 | 15060 |
| Onland | city | Fryslan | Netherlands | 52.94 | 5.84 | 3 | 10410 |
| Onlangs | city | Free State | South Africa | -27.18 | 28.35 | 5124 | 451 |
| Onlay | city | Bourgogne | France | 46.97 | 3.90 | 1184 | 1045 |
| Onletkauk | city | Mandalay | Burma | 21.66 | 96.03 | 226 | 15664 |
| Onley | city | Virginia | United States | 37.69 | -75.72 | 42 | |
| Onlinzeik | city | Bago | Burma | 18.49 | 96.65 | 52 | 6744 |
| Onllwyn | city | Neath Port Talbot | United Kingdom | 51.77 | -3.68 | 1082 | 25746 |
| Onlova | city | Nampula | Mozambique | -13.71 | 40.57 | 3 | 1195 |
| Onlumbu | city | Kasai Oriental | Congo (Dem. Republic of The)-(Zaire) | -3.91 | 24.65 | 2037 | 1490 |
| Onlust | city | Limpopo | South Africa | -23.61 | 28.02 | 3349 | 149 |
| Onlust | city | Limpopo | South Africa | -23.21 | 29.62 | 2933 | 0 |
| Only | city | Missouri | United States | 37.92 | -92.95 | 1085 | |
| Only | city | Tennessee | United States | 35.86 | -87.69 | 830 |