| Name | Meaning | Gender | Origin |
|---|
| Sora | Chirping Songbird | Unisex | Native American |
| Spanky | | Unisex | |
| Sparky | Animated, lively. | Unisex | |
| Spaz | For a spazy kitty
| Male | |
| Speedo | | Unisex | |
| Speedy | Rapid motion, swift. | Unisex | |
| Spunky | Spirited, plucky. | Male | |
| Sticky | | Unisex | Hebrew |
| Storm | Storm
| Male | Word |
| Striker | | Male | |
| Stud | | Unisex | Hebrew |
| Tarzan | | Male | |
| Taz | | Male | |
| Thumper | To walk with heavy steps | Unisex | |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Trouble | A cause of disturbance or difficulty. | Male | |
| Troy | Descendant of the curly haired ones | Male | Irish |
| Turbo | Driven by a turbine - turbocharged | Unisex | |
| Tyson | son of a German, son of Ty | Male | English |
| Wild Thing | | Unisex | Hebrew |
| Wiz | | Unisex | Hebrew |
| Zac | Remembered by G-d | Male | English |
| Zachary | God remembers, renowned by God | Male | Hebrew |
| Zippity | | Unisex | |