| Name | Meaning | Gender | Origin |
|---|
| Pebbles | After the character in 'The Flintstones' cartoons | Female | English |
| Penny | Weaver | Female | Greek |
| Pepper | Pepper | Female | English |
| Pepsi | Brand of cola soft drink. | Unisex | English |
| Phoebe | Bright | Female | Greek |
| Piper | A pipe player | Female | English |
| Pippa | Lover of horses | Female | Greek |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Poppy | Poppy flower | Female | English |
| Princess | Royal son | Female | English |
| Priscilla | Ancient | Female | Latin |
| Rebel | One that resists of defies authority | Unisex | English |
| Rosie | Rose | Female | Latin |
| Roxie | Star | Unisex | Persian |
| Roxy | Star | Female | Persian |
| Ruby | Red | Female | Latin |
| Rusty | Rusty, full of rust | Unisex | American English |
| Rylee | Rye clearing | Unisex | English |
| Sadie | Princess | Female | Hebrew |
| Sally | Princess | Female | Hebrew |
| Samantha | Listener | Female | Aramaic |
| Sammy | His name is God | Unisex | Hebrew |
| Sarge | Noncommissioned Army or Air Force rank | Unisex | English |
| Sasha | Defending men | Unisex | Greek |
| Sassy | Lively and spirited | Unisex | English |
| Scooby | | Unisex | Hebrew |
| Scooter | One who goes suddenly and speedily. | Unisex | English |
| Scout | Observer | Unisex | American English |
| Sexy | | Unisex | Hebrew |
| Shadow | Shadow | Unisex | English |