| Name | Meaning | Gender | Origin |
|---|
| Pitch | Pitch black! | Unisex | |
| Pitch | Pitch black! | Unisex | |
| Pitch Black | | Unisex | |
| Pluto | The ninth and most distant planet from the sun | Male | |
| Poe | peacock | Male | |
| Pogo | | Unisex | |
| Polo | brave wanderer | Male | Tibetan |
| Polo | brave wanderer | Male | Tibetan |
| 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 |
| Prince | Principal one: first. The rock musician Prince.
| Male | Latin |
| Princess | Female member of a royal family | Female | Word |
| Puma | | Female | |
| Pumpkin | Large round fruit with orange skin | Male | |
| Quirinus | | Unisex | |
| Raven | Dark haired or wise
| Female | Word |
| Rebel | One that resists of defies authority | Male | Word |
| Reggie | counsel power | Male | English |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Rider | horseman | Male | English |
| Riley | courageous | Female | Irish |
| River | | Male | |
| Rocker | | Unisex | Hebrew |
| Romeo | pilgrim to Rome | Male | Italian |
| Rootbeer | | Unisex | |