| Name | Meaning | Gender | Origin |
|---|
| Rowdy | Boisterous. Western Nickname. | Unisex | English |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sassy | Lively and spirited | Unisex | English |
| Scooby | | Unisex | Hebrew |
| Scooter | One who goes suddenly and speedily. | Unisex | English |
| Scout | Observer | Unisex | American English |
| Smoky | | Unisex | Hebrew |
| Spartacus | From the city of Sparta | Unisex | English |
| Suzie | Lily | Unisex | Hebrew |
| Tango | | Unisex | Hebrew |
| Taz | Wild Animal, Thrid Born | Unisex | American |
| Tequila | An alcoholic liquor distilled from mescal. | Unisex | English |
| Tiger | Tiger | Unisex | English |
| Tiki | Maori figure representing an ancestor. A wooden or stone image of a Polynesian god. | Unisex | English |
| Tilly | Powerful battler | Unisex | Germanic |
| Tiny | Extremely small | Unisex | English |
| Toffee | A hard brown, chewy candy | Unisex | English |
| Tootsie | A girl or young woman. | Unisex | English |
| Tuffy | | Unisex | Hebrew |
| Tweety | | Unisex | Hebrew |
| Twinkie | A cream filled cake. | Unisex | English |
| Vegas | | Unisex | Hebrew |
| Winnie | Blessed peace | Unisex | Welsh |
| Wizz | | Unisex | Hebrew |
| Yoda | | Unisex | Hebrew |