| Name | Meaning | Gender | Origin |
|---|
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pickles | Food flavored in a solution of vinegar | Unisex | English |
| Piston | | Unisex | Hebrew |
| Pringle | | Unisex | Hebrew |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Rogue | | Unisex | Hebrew |
| Roman | Roman | Unisex | Latin |
| Sable | Sable (black) | Unisex | English |
| Sabre | | Unisex | Hebrew |
| Safari | | Unisex | Hebrew |
| Sampson | Sun | Unisex | Hebrew |
| Sasha | Defending men | Unisex | Greek |
| Sasquatch | Has extra toes and hence is a bigfoot | Unisex | English |
| Sassy | Lively and spirited | Unisex | English |
| Satan | The Devil and adversary of God | Unisex | English |
| Saturn | Sixth and second largest planet away from the Sun. | Unisex | English |
| Scar | From The Lion King | Unisex | English |
| Scooter | One who goes suddenly and speedily. | Unisex | English |
| Scout | Observer | Unisex | American English |
| Shark | | Unisex | Hebrew |
| Shiloh | Gift for him | Unisex | Hebrew |
| Spartacus | From the city of Sparta | Unisex | English |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tex | Of Texas | Unisex | English |
| Thunder | Stormy Tempered | Unisex | English |
| Titan | Powerful big man | Unisex | Greek |
| Trojan | | Unisex | Hebrew |