| Name | Meaning | Details |
|---|---|---|
| Ortega | From Ortega | View Details |
| Orville | Golden Town | View Details |
| Oscosh | The Bravest Of All | View Details |
| Osiris | God Of The Dead | View Details |
| Overton | From The Riverbank Town | View Details |
| Owen | The Yew Tree Or Youth | View Details |
| Oxford | From The Oak Valley | View Details |
| Oziel | Having The Strength Of God | View Details |
| Pacey | From Pacy In France | View Details |
| Pachacutec | One Who Changes The World | View Details |
| Paddington | The Estate Of Padda | View Details |
| Pahana | Lost White Brother | View Details |
| Paitalyi | Son Of The Sun | View Details |
| Paley | From The Pale Field | View Details |
| Panagiotis | In Honor Of The Virgin Mary | View Details |