| Name | Meaning | Gender | Origin |
|---|
| Pixie | A fairy like creature. Playful and mischievous | Female | |
| Pixie | A fairy like creature. Playful and mischievous | Female | Swedish |
| Poco | Little. | Unisex | |
| Polly | Bitter
| Female | English |
| Polly | Bitter
| Female | English |
| Pompom | | Unisex | |
| Pookie | | Unisex | |
| Popcorn | Corn that when heated forms white edible puffs. | Unisex | |
| 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 |
| Posy | a bunch of flowers | Female | English |
| Precious | One who is beloved, a darling. | Female | Latin |
| Princess | Female member of a royal family | Female | Word |
| Prissy | | Female | |
| Prunella | small plum | Female | Latin |
| Pudding | | Unisex | |
| Pugsley | | Unisex | Hebrew |
| Putt-Putt | | Unisex | Hebrew |
| Quasar | Meteorite | Unisex | Hindu |
| Queenie | Queen
| Female | English |
| Rabbit | | Unisex | |
| Raisin | | Unisex | |
| Rochelle | from the little rock | Female | |
| Rosetta | splendid | Female | Persian |
| Roxie | Persian, dawn | Female | English |