| Name | Meaning | Gender | Origin |
|---|
| Peppy | | Unisex | Hebrew |
| Pete | Stone | Male | Greek |
| Phantom | Something elusive. A ghost | Unisex | English |
| Prancer | | Unisex | Hebrew |
| Q-tip | | Unisex | Hebrew |
| Radar | | Unisex | Hebrew |
| Raider | | Unisex | Hebrew |
| Rascal | One that is playfully mischievous | Unisex | English |
| Reno | Ruler with counsel | Unisex | Germanic |
| Riley | Rye clearing | Male | English |
| River | River | Unisex | English |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Roscoe | Roe deer wood | Male | Norse |
| Rudy | Famous wolf | Male | Germanic |
| Sampson | Sun | Unisex | Hebrew |
| Sarge | Noncommissioned Army or Air Force rank | Unisex | English |
| Sasha | Defending men | Unisex | Greek |
| Sasquatch | Has extra toes and hence is a bigfoot | Unisex | English |
| Scooter | One who goes suddenly and speedily. | Unisex | English |
| Seymour | Moor | Male | Latin |
| Silver | Silver (the metal or colour) | Male | English |
| Skittles | | Unisex | Hebrew |
| Sky | Sky | Unisex | Norse |
| Slade | Valley | Male | English |
| Slate | | Unisex | Hebrew |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English |
| Snowball | | Unisex | Hebrew |
| Spidey | | Unisex | Hebrew |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English |
| Sprite | Lemonade flavored soft drink. | Unisex | English |