| Name | Meaning | Gender | Origin |
|---|
| Pepper | Pepper | Female | English |
| Pepsi | Brand of cola soft drink. | Unisex | English |
| Phoenix | Phoenix | Male | Greek |
| Pickles | Food flavored in a solution of vinegar | Unisex | English |
| Pip | Lover of horses | Unisex | Greek |
| Pipsqueak | | Unisex | Hebrew |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Poco | Little. | Unisex | English |
| Poppy | Poppy flower | Female | English |
| Princess | Royal son | Female | English |
| Puddles | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Queenie | Female ruler | Female | English |
| Rascal | One that is playfully mischievous | Unisex | English |
| Red | Red | Unisex | English |
| Riley | Rye clearing | Male | English |
| Rina | Pet form of names in -rina | Female | English |
| Ringo | Apple, peace be with you | Male | English |
| Rocky | Battle cry | Male | Germanic |
| Rolo | Burmese | Unisex | English |
| Ronnie | Ruler with counsel | Unisex | Norse |
| Rory | Red king | Male | Gaelic |
| Rosie | Rose | Female | Latin |
| Roxy | Star | Female | Persian |
| Ruby | Red | Female | Latin |
| Rupert | Bright fame | Male | English |
| Sabrina | A Welsh river name | Female | Gaelic |
| Sadie | Princess | Female | Hebrew |
| Sam | He is called god | Male | Hebrew |
| Sammy | His name is God | Unisex | Hebrew |