| Gender | Baby Name | Meaning |
|---|---|---|
 | Oded | To Encourage |
| Ogen | Anchor |
| Oliver | Olive tree |
| Olivier | Olive tree |
| Omar | Long Life, Popular, Flourishing |
| Omari | Speaker, Chief |
| Orrick | Sword ruler |
| Orson | Bear cub |
| Osama | Lion like |
| Osbert | Divine bright |
| Oscar | Deer lover |
| Osman | Tender youth |
| Owen | Well born |
 | Pallas | Youth |
| Palmer | Holy land pilgrim |
| Pancho | Free |
| Paolo | Small |
| Pardes | Orange grove |
| Paresh | Supreme Spirit |
| Parham | Servant of God |
| Parker | Park keeper |
| Parkin | Rock |
| Parrish | Noble from Paris |
| Parry | Son of Harry |
| Pascal | Child of Easter |
| Patrice | Noble |
| Patrick | Noble |
| Paul | Humble, small |
| Pele | Miracle, wonder |
| Pello | Stone |
