| Name | Meaning | Gender | Origin |
|---|
| Patty | A patrician | Female | Latin |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Penny | Weaver | Female | Greek |
| Pepper | Pepper | Female | English |
| Pepsi | Brand of cola soft drink. | Unisex | English |
| 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 |
| Prince | Royal son | Male | English |
| 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 |
| Raleigh | Red wood | Male | English |
| Randal | Shield rim | Male | Germanic |
| Rascal | One that is playfully mischievous | Unisex | English |
| Rhianna | Nymph | Female | Welsh |
| Riley | Rye clearing | Male | English |
| Rina | Pet form of names in -rina | Female | English |
| Robbie | Bright fame | Male | Germanic |
| Rocky | Battle cry | Male | Germanic |
| Rose | Rose | Female | Latin |
| Rosie | Rose | Female | Latin |
| Roxy | Star | Female | Persian |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sadie | Princess | Female | Hebrew |
| Sam | He is called god | Male | Hebrew |