| Name | Meaning | Gender | Origin |
|---|
| Padfoot | | Unisex | |
| Paul | small | Male | Latin |
| Paulie | | Unisex | |
| Peach | | Unisex | |
| Pepper | A spice or condiment. | Male | Sanskrit |
| Percy | | Male | |
| 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 |
| Phillip | lover of horses | Male | Greek |
| Phineas | oracle; dark-skinned | Male | Hebrew |
| Pi | | Unisex | |
| Pica | | Unisex | Hebrew |
| Pilot | | Male | |
| Ping | | Unisex | |
| Pip | Small seed of a fruit. Also "Pipsqueak" one that is small | Male | English |
| Pixel | | Male | |
| Poindexter | | Unisex | |
| Pong | | Unisex | Hebrew |
| Potter | maker of drinking and storage vessels | Male | English |
| Prescott | Residence Name | Male | English |
| Preston | dweller at the church, priest's settlement | Male | English |
| Quark | subatomic particle | Unisex | |
| Quentin | Fifth.
| Male | Latin |
| Quigley | Unruly hair
| Male | Irish |
| Quigly | | Unisex | |
| Quincy | Fifth: derived from Roman clan name.
| Male | |