| Name | Meaning | Gender | Origin |
|---|
| Penny | Weaver | Female | Greek |
| Pepper | Pepper | Female | English |
| Phoebe | Bright | Female | Greek |
| Pip | Lover of horses | Unisex | Greek |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Polly | Bitter | Female | Hebrew |
| Princess | Royal son | Female | English |
| Puddles | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Queenie | Female ruler | Female | English |
| Rags | | Unisex | Hebrew |
| Rascal | One that is playfully mischievous | Unisex | English |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Rolo | Burmese | Unisex | English |
| Rosie | Rose | Female | Latin |
| Rowdy | Boisterous. Western Nickname. | Unisex | English |
| Roxy | Star | Female | Persian |
| Sadie | Princess | Female | Hebrew |
| Saffron | From the spice or the colour, yellow | Female | English |
| Sally | Princess | Female | Hebrew |
| Sammy | His name is God | Unisex | Hebrew |
| Sasha | Defending men | Unisex | Greek |
| Sassy | Lively and spirited | Unisex | English |
| Scooter | One who goes suddenly and speedily. | Unisex | English |
| Scrappie | | Unisex | Hebrew |
| Serena | Composed | Female | Latin |
| Sheba | Daughter of an oath | Female | Hebrew |
| Sherry | The plains | Female | Hebrew |
| Shorty | Of less than average size | Unisex | English |
| Silky | Soft as silk. | Unisex | English |