| Name | Meaning | Gender | Origin |
|---|
| Pascal | born at Easter | Male | |
| Paws | | Male | |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Pebbles | after the character in 'The Flintstones' cartoons | Male | |
| Percival | Hero of several Arthurian stories
| Male | |
| Petunia | trumpet-shaped flower | Female | English |
| Philomena | song lover, friend, lover of the moon | Female | Greek |
| Phineas | oracle; dark-skinned | Male | Hebrew |
| Pi | | Unisex | |
| Pickles | Food flavored in a solution of vinegar | Unisex | |
| Pierre | A rock. Form of Peter.
| Male | |
| Pig | | Unisex | Hebrew |
| Piglet | | Unisex | |
| Pippa | lover of horses | Female | English |
| Poo | | Unisex | Hebrew |
| Pooka | | Unisex | Hebrew |
| Pop | | Unisex | Hebrew |
| Porsche | Offering
| Female | Word |
| Primrose | first rose | Female | English |
| Prunella | small plum | Female | Latin |
| Psycho | | Male | |
| Pug | Short for pugnacious; combative, belligerent. A breed of dog originating in China. | Unisex | |
| Punky | | Unisex | |
| Quentin | Fifth.
| Male | Latin |
| Quimby | from the woman's estate | Male | Norse |