| Name | Meaning | Details |
|---|---|---|
| Oleg | Holy Light | View Details |
| Olesia | Holy | View Details |
| Olga | Holy | View Details |
| Olin | "Ancestors Heir" | View Details |
| Olina | "Ancestors Heir" | 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 |
| Olof | "Ancestors Heir" | View Details |
| Olya | Holy | View Details |
| Omer | Bundle Of Corn | View Details |
| Omolara | Born At The Right Time | View Details |
| Onella | Torch Light | View Details |
| Oni | Born On Holy Ground | View Details |