| Name | Meaning | Gender | Origin |
|---|
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Picasso | | Male | |
| Pickles | Food flavored in a solution of vinegar | Unisex | |
| Piggy | | Unisex | |
| Pigpen | | Unisex | Hebrew |
| Pip | Small seed of a fruit. Also "Pipsqueak" one that is small | Male | English |
| Pistol | | Unisex | |
| Pixel | | Male | |
| Poco | Little. | Unisex | |
| Pogo | | Unisex | |
| Pollux | crown | Male | Greek |
| Pookie | | Unisex | |
| Possum | Nocturnal marsupial with a thick coat of hair, long nose and long tail | Male | |
| Pounce | | Unisex | |
| Pounce De Leon | aka deLion | Unisex | |
| Powder | Substance of fine particles. Light, dry snow. | Unisex | |
| Prince | Principal one: first. The rock musician Prince.
| Male | Latin |
| Prince Charming | | Unisex | Hebrew |
| Puddy | | Unisex | |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Male | |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Male | |
| Puffle | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Male | |
| Punkin | | Unisex | |