| Name | Meaning | Gender | Origin |
|---|
| Norm | From The North | Unisex | English |
| Nuno | Nine | Unisex | Portuguese |
| Oleg | holy | Male | Russian |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Olivier | From the olive tree
| Male | |
| Omar | first son, disciple; gifted speaker; famous | Male | Arabic |
| Orlando | Famous land
| Male | Italian |
| Oscar | God's spear.
| Male | English |
| Otto | Born eighth or wealthy
| Male | |
| Pablo | Little. Form of Paul.
| Male | Spanish |
| Palmer | palm bearing pilgrim | Male | English |
| Paolo | Small, a form of Paul
| Male | Italian |
| Pascal | born at Easter | Male | |
| Patrice | Latin, noble, patrician | Male | |
| Patrick | Patrician: noble. Romans society was divided into plebeians: (commoners) and patricians: (aristocrats). Saint Patrick - patron saint of Ireland.
| Male | Latin |
| Paul | small | Male | Latin |
| Pavel | small | Male | Russian |
| Pedro | A Rock | Male | Spanish |
| Pepper | A spice or condiment. | Male | Sanskrit |
| Peregrine | traveler, pilgrim | Male | Latin |
| Pete | A rock. Form of Peter.
| Male | English |
| Peter | A rock. Peter the biblical fisherman and apostle had impulsive nature and rocklike faith. In Catholic tradition he is the first pope.
| Male | Greek |
| Petr | Rock | Unisex | Czechoslovakian |
| Petros | Rock | Unisex | Greek |
| Phil | | Unisex | |