| Name | Meaning | Gender | Origin |
|---|
| Odette | happy home | Female | |
| Olga | holy | Female | Russian |
| Omar | first son, disciple; gifted speaker; famous | Male | Arabic |
| Ophelia | Serpentine
| Female | Greek |
| Orion | Son of Fire
| Male | Greek |
| Oscar | God's spear.
| Male | English |
| Otto | Born eighth or wealthy
| Male | |
| Pablo | Little. Form of Paul.
| Male | Spanish |
| Paloma | Dove
| Female | Spanish |
| Patty | patrician | Female | English |
| Paula | small | Female | Feminine |
| Pax | peaceful | Male | Latin |
| Pele | Hawaiian volcano goddess. | Female | Hawaiian |
| 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 |
| Philippe | Friend Of Horses | Male | French |
| Rafael | God has healed.
| Male | Spanish |
| Rain | | Male | |
| Rainbow | | Female | |
| Rayne | | Unisex | |
| Rebekah | Hebrew, servant of God | Female | Spelling |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Richard | powerful ruler; brave one | Male | |
| Rita | pearl, precious | Female | English |
| Rochelle | from the little rock | Female | |
| Rose | Flower
| Female | Latin |