| Name | Meaning | Gender | Origin |
|---|
| Peaches | Red, yellow skinned fleshy fruit | Female | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Peewee | | Unisex | |
| Penny | Greek, weaver | Female | English |
| Peppy | | Male | |
| Picasso | | Male | |
| Pico | | Unisex | Hebrew |
| Pierre | A rock. Form of Peter.
| Male | |
| Pinky | For Pinky Lee, the painting, and the color of her nose | Unisex | |
| Poco | Little. | Unisex | |
| Popcorn | Corn that when heated forms white edible puffs. | Unisex | |
| Posy | a bunch of flowers | Female | English |
| Precious | One who is beloved, a darling. | Female | Latin |
| Raisin | | Unisex | |
| Ruby | Jewel
| Female | Latin |
| Sasha | defending men | Female | Russian |
| Sassy | Lively and spirited | Female | |
| Scarlet | Scarlet coloured, deep red | Female | Color |
| Shorty | Of less than average size | Unisex | |
| Skeeter | | Unisex | |
| Skipper | Master of a ship. | Male | English |
| Sky | The expanse of air over the Earth | Female | Nature |
| Smiley | | Unisex | |
| Smudge | A blotch or smear | Male | |
| Snickers | A brand of candy bar. | Unisex | |