| Name | Meaning | Gender | Origin |
|---|
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Picasso | | Male | |
| Pickle | | Unisex | Hebrew |
| Pippin | Name of a king
| Male | |
| Pixie | A fairy like creature. Playful and mischievous | Female | Swedish |
| Pixie | A fairy like creature. Playful and mischievous | Female | |
| Plato | broad-shouldered | Male | Greek |
| Pluto | The ninth and most distant planet from the sun | Male | |
| Pocahontas | Playful, Friendly | Unisex | Native American |
| Polka | | Male | |
| Pooka | | Unisex | Hebrew |
| Poppy | Flower with four crumpled petals in red, orange or white colours | Female | Latin |
| Poppy | Flower with four crumpled petals in red, orange or white colours | Female | Latin |
| Posh | | Unisex | |
| Pretty | | Unisex | |
| Princess | Female member of a royal family | Female | Word |
| Priscilla | Of ancient lineage | Female | Latin |
| Puck | | Male | |
| Pudding | | Unisex | |
| Puddy Tat | | Unisex | |
| Pumpkin | Large round fruit with orange skin | Male | |
| Purdy | Variation on pretty. | Unisex | |
| Purrball | | Unisex | |
| Pushka | | Unisex | |
| Puzzle | | Unisex | |