| Name | Meaning | Gender | Origin |
|---|
| Periwinkle | | Male | |
| Petra | rock, stone | Female | Greek |
| Petunia | trumpet-shaped flower | Female | English |
| Phoebe | bright one | Female | Greek |
| Phoebe | bright one | Female | Greek |
| Pinky | For Pinky Lee, the painting, and the color of her nose | Unisex | |
| Piper | Piper
| Female | English |
| Pippa | lover of horses | Female | English |
| Pippi | lover of horses | Female | Norse |
| Pixie | A fairy like creature. Playful and mischievous | Female | |
| Pixie | A fairy like creature. Playful and mischievous | Female | Swedish |
| Poet | | Female | Hebrew |
| Polly | Bitter
| Female | English |
| Polly | Bitter
| Female | English |
| Pookie | | Unisex | |
| Poppins | | 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 |
| Porkchop | | Unisex | Hebrew |
| Precious | One who is beloved, a darling. | Female | Latin |
| Primrose | first rose | Female | English |
| Princess | Female member of a royal family | Female | Word |
| Prissy | | Female | |
| Prudence | caution | Female | |
| Psyche | the soul | Female | Greek |