| Name | Meaning | Gender | Origin |
|---|
| Paws | | Male | |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Pearl | Precious jewel. A hard, rounded gem, usually white in colour | Female | Latin |
| Pebbles | after the character in 'The Flintstones' cartoons | Male | |
| Penelope | Dream weaver
| Female | Greek |
| Penguin | | Male | |
| Penny | Greek, weaver | Female | English |
| Pepe | Spanish variation of Joseph | Male | Spanish |
| Pepper | A spice or condiment. | Male | Sanskrit |
| Percy | | Male | |
| Perry | French form of Peter
| Male | English |
| Persia | | Male | Hebrew |
| Pete | A rock. Form of Peter.
| Male | English |
| Phantom | Something elusive. A ghost | Unisex | |
| Phil | | Unisex | |
| Phoebe | bright one | Female | Greek |
| Phoebe | bright one | Female | Greek |
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Picasso | | Male | |
| Pickles | Food flavored in a solution of vinegar | Unisex | |
| Piggy | | Unisex | |
| Pigpen | | Unisex | Hebrew |
| Pip | Small seed of a fruit. Also "Pipsqueak" one that is small | Male | English |
| Pippi | lover of horses | Female | Norse |