These names are adopting in Europe-union and that is the way these are so popular in this country. See full list of Girls, Boys and Transgenders Baby Name Famous in Europe-union Country.
| Name | Meaning | Details |
|---|---|---|
| Onofre | Peace Warrior | View Details |
| Onufry | Grazing Donkey | View Details |
| Onyx | Black Gemstone | View Details |
| Oona | One | View Details |
| Opaque | Not Transparent | View Details |
| Ophelia | Helper | View Details |
| Ophelie | Helper | View Details |
| Ora | Prayer | View Details |
| Orabella | Beautiful Gold | View Details |
| Oracion | Prayer | View Details |
| Oracle | Prophecy | View Details |
| Oran | Green | View Details |
| Orane | Rising | View Details |
| Orchid | Flowering Plant | View Details |
| Orde | Point | View Details |