| Name | Meaning | Details |
|---|---|---|
| Onslow | Hill Of The Passionate One | View Details |
| Onyx | Black Gemstone | View Details |
| Oona | One | View Details |
| Oratilwe | Loved One | View Details |
| Orma | Free Men | View Details |
| Ormand | Descendent Of The Red One | View Details |
| Ormanda | Descendent Of The Red One | View Details |
| Pace | Peaceful One | View Details |
| Pachacutec | One Who Changes The World | View Details |
| Pacheco | Noble One | View Details |
| Paco | Free | View Details |
| Pacorro | Free Man | View Details |
| Pahuac | One Who Flies | View Details |
| Painter | One Who Paints | View Details |
| Palani | Free Man | View Details |