| Name | Meaning | Gender | Origin |
|---|
| Queen | Female ruler | Unisex | English |
| Rambo | | Unisex | Hebrew |
| Rascal | One that is playfully mischievous | Unisex | English |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sable | Sable (black) | Unisex | English |
| Sammy | His name is God | Unisex | Hebrew |
| Sasha | Defending men | Unisex | Greek |
| Scout | Observer | Unisex | American English |
| Shadow | Shadow | Unisex | English |
| Shiloh | Gift for him | Unisex | Hebrew |
| Shiva | Auspicious | Unisex | Sanskrit |
| Sky | Sky | Unisex | Norse |
| Skyler | Guarded | Unisex | Dutch |
| Sly | A forest | Unisex | Latin |
| Sniper | A skilled shooter who spots targets from a concealed place. | Unisex | English |
| Sparky | Animated, lively. | Unisex | English |
| Stormy | Violent weather | Unisex | English |
| Sushi | Raw fish. | Unisex | English |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Taurus | Bull | Unisex | Latin |
| T-bone | A thick steak containing a T shaped bone. | Unisex | English |
| Thunder | Stormy Tempered | Unisex | English |
| Tilly | Powerful battler | Unisex | Germanic |
| Titan | Powerful big man | Unisex | Greek |
| Toby | God is good | Unisex | Hebrew |
| Turbo | Driven by a turbine - turbocharged | Unisex | English |
| Vegas | | Unisex | Hebrew |
| Wednesday | Woden's Day | Unisex | English |
| Wonder | | Unisex | Hebrew |