| Name | Meaning | Gender | Origin |
|---|
| Pete | Stone | Male | Greek |
| Peter | Stone | Male | Greek |
| Petey | Stone | Unisex | Greek |
| Phantom | Something elusive. A ghost | Unisex | English |
| Phoenix | Phoenix | Male | Greek |
| Picasso | | Unisex | Hebrew |
| Pickles | Food flavored in a solution of vinegar | Unisex | English |
| Pierre | Stone | Male | Greek |
| Piggy | | Unisex | Hebrew |
| Piglet | | Unisex | Hebrew |
| Pinky | For Pinky Lee, the painting, and the color of her nose | Unisex | English |
| Pippin | Foreigner, stranger | Unisex | Latin |
| Pirate | | Unisex | Hebrew |
| Plato | Liberal | Male | Greek |
| Pluto | Wealth, riches | Unisex | Greek |
| Pockets | | Unisex | Hebrew |
| Pogo | | Unisex | Hebrew |
| Pokey | | Unisex | Hebrew |
| Pongo | One who smells. | Unisex | English |
| Pooh | | Unisex | Hebrew |
| Pookie | | Unisex | Hebrew |
| Popcorn | Corn that when heated forms white edible puffs. | Unisex | English |
| Porkchop | | Unisex | Hebrew |
| Porky | | Unisex | Hebrew |
| Porter | One who carries goods | Male | Latin |
| Powder | Substance of fine particles. Light, dry snow. | Unisex | English |
| Prancer | | Unisex | Hebrew |
| Presley | Priest clearing | Unisex | English |
| Pretty | | Unisex | Hebrew |
| Prince | Royal son | Male | English |