| Name | Meaning | Gender | Origin |
|---|
| Patches | | Unisex | Hebrew |
| Pluto | Wealth, riches | Unisex | Greek |
| Rainbow | Rainbow | Unisex | English |
| Rascal | One that is playfully mischievous | Unisex | English |
| Robbin | Famed: Bright: Shining Form Of Robert Popular Since The Medieval Days Of Robin Hood. Robinson: (English) Son Of Robert Famed: Bright: Shining. Surname. | Unisex | English |
| Rogue | | Unisex | Hebrew |
| Roo | | Unisex | Hebrew |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sable | Sable (black) | Unisex | English |
| Sabre | | Unisex | Hebrew |
| Salem | Secure, peace | Unisex | Arabic |
| Sammy | His name is God | Unisex | Hebrew |
| Sasha | Defending men | Unisex | Greek |
| Sassy | Lively and spirited | Unisex | English |
| Satan | The Devil and adversary of God | Unisex | English |
| Scout | Observer | Unisex | American English |
| Shadow | Shadow | Unisex | English |
| Shilo | Gift for him | Unisex | Hebrew |
| Shorty | Of less than average size | Unisex | English |
| Smoky | | Unisex | Hebrew |
| Snowflake | Single flake or crystal of snow. | Unisex | English |
| Sparky | Animated, lively. | Unisex | English |
| Sprite | Lemonade flavored soft drink. | Unisex | English |
| Stubby | | Unisex | Hebrew |
| Taz | Wild Animal, Thrid Born | Unisex | American |
| Tilly | Powerful battler | Unisex | Germanic |
| Tink | | Unisex | Hebrew |
| Tiny | Extremely small | Unisex | English |
| Toby | God is good | Unisex | Hebrew |
| Ziggy | Victory protection | Unisex | Germanic |