| Name | Meaning | Gender | Origin |
|---|
| Norman | man from the north | Male | English |
| Octavia | eighth | Female | Latin |
| 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 |
| Olivia | Olive
| Female | Latin |
| Orion | Son of Fire
| Male | Greek |
| Orson | Little bear
| Male | Latin |
| Oscar | God's spear.
| Male | English |
| Owen | Young fighter
| Male | Welsh |
| Parker | cultivated land | Male | English |
| Patrick | Patrician: noble. Romans society was divided into plebeians: (commoners) and patricians: (aristocrats). Saint Patrick - patron saint of Ireland.
| Male | Latin |
| Penelope | Dream weaver
| Female | Greek |
| Percival | Hero of several Arthurian stories
| Male | |
| Peregrine | traveler, pilgrim | Male | Latin |
| Phillip | lover of horses | Male | Greek |
| Phineas | oracle; dark-skinned | Male | Hebrew |
| Phoebe | bright one | Female | Greek |
| Phoebe | bright one | Female | Greek |
| Pierce | rock | Unisex | |
| Pierce | rock | Male | English |
| Portia | pig, hog or doorway | Female | Latin |
| Quentin | Fifth.
| Male | Latin |
| Quincy | Fifth: derived from Roman clan name.
| Male | |
| Ramona | Wise defender
| Female | Spanish |
| Raoul | Form of Ralph wolf counsel.
| Male | |
| Raymond | Guards wisely.
| Male | |