| 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 |
| Prince | Principal one: first. The rock musician Prince.
| Male | Latin |
| Princess | Female member of a royal family | Female | Word |
| Prissy | | Female | |
| Prunella | small plum | Female | Latin |
| Pudding | | Unisex | |
| Puddles | | Male | Hebrew |
| Pugsley | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Male | |
| Putt-Putt | | Unisex | Hebrew |
| Quasar | Meteorite | Unisex | Hindu |
| Queenie | Queen
| Female | English |
| Quimby | from the woman's estate | Male | Norse |
| Rabbit | | Unisex | |