| Name | Meaning | Gender | Origin |
|---|
| Snickers | A brand of candy bar. | Unisex | |
| Snickers | A brand of candy bar. | Unisex | |
| Snowball | | Unisex | |
| Snuggles | To curl up closely, cuddle | Male | |
| Snuggles | To curl up closely, cuddle | Male | |
| Socks | Short stockings finishing above the ankle | Unisex | |
| Socrates | | Male | |
| Spartacus | from the city of Sparta | Male | Latin |
| Spooky | | Unisex | |
| Squiggle | | Unisex | |
| Styx | from Greek mythology, the river that formed the boundary between earth and the underworld | Unisex | |
| Tabasco | American spicy sauce made from red peppers. | Male | |
| Taboo | | Male | |
| Taffy | Sticky candy | Male | Welsh |
| Tarot | | Male | Hebrew |
| Tarzan | | Male | |
| Tazz | | Unisex | |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tigger | from Winnie the Pooh | Unisex | |
| Tinkerbell | | Unisex | |