| Name | Meaning | Details |
|---|---|---|
| Ormand | Descendent Of The Red One | View Details |
| Ormanda | Descendent Of The Red One | View Details |
| Oscosh | The Bravest Of All | View Details |
| Osiris | God Of The Dead | View Details |
| Outacite | Man Killer | View Details |
| Overton | From The Riverbank Town | View Details |
| Owen | The Yew Tree Or Youth | View Details |
| Oxford | From The Oak Valley | View Details |
| Ozanka | Wall Germander Flower | View Details |
| Oziel | Having The Strength Of God | View Details |
| Pachacutec | One Who Changes The World | View Details |
| Pacorro | Free Man | View Details |
| Paddington | The Estate Of Padda | View Details |
| Padraic | Nobleman | View Details |
| Pahana | Lost White Brother | View Details |