| Baby Name | Meaning | Gender |
|---|
| Osiris | Myth Name (God Of The Dead) | Male |
| Oskar | Jumping Fighter | Male |
| Osric | Divine Ruler | Male |
| Ossian | Fawn | Male |
| Oswald | Power Of God | Male |
| Oswin | God's Friend. | Male |
| Otis | Keen Of Hearing | Male |
| Otto | Born Eighth | Male |
| Owen | Young Fighter | Male |
| Oz | Divine | Male |
| Ozzie | Strong | Male |
| Pablo | Little. Form Of Paul. | Male |
| Padraig | Noble | Male |
| Palmer | Pilgrim | Male |
| Pan | Myth Name (God Of Flocks) | Male |
| Paolo | "Small, A Form Of Paul" | Male |
| Park | Unisexual Name Meaning "Cypress Tree" | Female |
| Parker | Keeper Of The Forest | Male |
| Pascal | Born On Easter | Male |
| Patrick | Patrician: Noble. Romans Society Was Divided Into Plebeians: (Commoners) And Patricians: (Aristocrats). Saint Patrick - Patron Saint Of Ireland. | Male |
| Patton | From The Warrior's Town | Male |
| Paul | Small | Male |
| Pax | Peaceful | Female |
| Paxton | From The Peaceful Farm | Male |
| Payton | From The Fighter's Farm | Male |