| Name | Meaning | Gender | Origin |
|---|
| Pipsqueak | | Unisex | Hebrew |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Poco | Little. | Unisex | English |
| Poppy | Poppy flower | Female | English |
| Precious | Loved | Female | English |
| Princess | Royal son | Female | English |
| Puddles | | Unisex | Hebrew |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Unisex | English |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Quick | Speedy and fast. | Unisex | English |
| Rags | | Unisex | Hebrew |
| Rain | Rain | Female | English |
| Rascal | One that is playfully mischievous | Unisex | English |
| Red | Red | Unisex | English |
| Rei | Salute | Female | Japanese |
| Reno | Ruler with counsel | Unisex | Germanic |
| Rina | Pet form of names in -rina | Female | English |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Romy | Sea dew | Unisex | Latin |
| Rona | Ruler with counsel | Female | Norse |
| Rosie | Rose | Female | Latin |
| Roxy | Star | Female | Persian |
| Ruby | Red | Female | Latin |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sadie | Princess | Female | Hebrew |
| Saffron | From the spice or the colour, yellow | Female | English |
| Sage | Aromatic herb | Unisex | English |
| Sally | Princess | Female | Hebrew |
| Samantha | Listener | Female | Aramaic |
| Sammy | His name is God | Unisex | Hebrew |