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 |
|---|---|---|
| Olimpio | Mountain Of The Gods | View Details |
| Oliva | Elf Army | View Details |
| Olive | Olive Or From The Olive Tree | View Details |
| Oliver | Descendant Of The Ancestor | View Details |
| Olivia | "Ancestors Descendant" | View Details |
| Olivier | "Elf Warrior Or Ancestors Descendant" | View Details |
| Ollie | Elf Army | View Details |
| Olympe | Olympian | View Details |
| Olympia | Mountain Of The Gods | View Details |
| Omega | The Greek Letter | View Details |
| Omiros | Pledge | View Details |
| Ondelette | Little Wave | View Details |
| Ondina | Water Sprite | View Details |
| Ondine | Wave Of Water | View Details |
| Onella | Torch Light | View Details |