| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ojeo | city | Departamento de San Miguel | El Salvador | 13.7666667 | -88.4833333 | 433 | 5237 |
| Ojo de Agua | city | Departamento de San Miguel | El Salvador | 13.4666667 | -88.35 | 2791 | 37979 |
| Ojo de Agua | city | Departamento de San Miguel | El Salvador | 13.4513889 | -88.1791667 | 351 | 48898 |
| Olomeguita | city | Departamento de San Miguel | El Salvador | 13.2977778 | -88.0538889 | 167 | 31375 |
| Oromontique | city | Departamento de San Miguel | El Salvador | 13.4833333 | -88.3833333 | 1942 | 43363 |
| Ostucal | city | Departamento de San Miguel | El Salvador | 13.8 | -88.3333333 | 1515 | 29696 |