| Palmer | palm bearing pilgrim | Male | English |
| 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 |
| Paxton | From the peaceful farm
| Male | Latin |
| Penn | enclosure | Male | English |
| Perry | French form of Peter
| Male | English |
| 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 |
| Philip | horse lover | Male | Greek |
| Pierce | rock | Male | English |
| Pierce | rock | Unisex | |
| Prescott | Residence Name | Male | English |
| Preston | dweller at the church, priest's settlement | Male | English |
| Princeton | Principal one: first. The rock musician Prince.
| Male | English |
| Putnam | from the sire's estate | Male | English |
| Quincy | Fifth: derived from Roman clan name.
| Male | |
| Rafael | God has healed.
| Male | Spanish |
| Raleigh | dweller by the deer meadow | Male | English |
| Ralph | Red wolf
| Male | English |
| Ralph | Red wolf
| Male | English |
| Ramsey | ram's land | Unisex | |
| Ransom | son of the shield; redeemer | Male | English |
| Rayburn | from the deer stream | Male | English |
| Raymond | Guards wisely.
| Male | |
| Reginald | powerful one | Male | English |