| Name | Meaning | Details |
|---|---|---|
| October | Born In October | View Details |
| Ofek | Horizon | View Details |
| Ogen | Anchor | View Details |
| Oihane | From The Forest | View Details |
| Okoth | Born When It Was Raining | View Details |
| Ola | "Ancestors Heir" | View Details |
| Olabisi | Increased Honors | View Details |
| Olaf | "Ancestors Heir" | View Details |
| Olaniyi | Glory In Wealth | View Details |
| Olavi | Ancestor; Descendant | View Details |
| Ole | "Ancestors Heir" | 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 |