| Name | Meaning | Gender | Origin |
|---|
| Spazz | | Unisex | Hebrew |
| Speedy | Rapid motion, swift. | Unisex | English |
| Spencer | Someone who gives out goods | Male | French |
| Spinner | | Unisex | Hebrew |
| Sprague | High-energy | Male | French |
| Sprint | | Unisex | Hebrew |
| Sprite | Lemonade flavored soft drink. | Unisex | English |
| Spunky | Spirited, plucky. | Unisex | English |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | English |
| Sunny | Filled with sunlight | Male | English |
| Suzy | Lily | Female | Hebrew |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | English |
| Tango | | Unisex | Hebrew |
| Tara | Crag | Female | Gaelic |
| Tatum | Tate's homestead | Female | English |
| Tempest | Storm | Female | English |
| Thad | Uncertain, perhaps praised or heart | Male | Aramaic |
| Thor | Thunder | Male | Norse |
| Tia | Princess Or Crowned One | Female | English |
| Tigger | From Winnie the Pooh | Unisex | English |
| Tod | Fox | Male | English |
| Tony | Derived From Victoria Triumphant. | Male | Latin |
| Trixie | Voyager through life | Female | Latin |
| Troy | Troyes | Female | French |
| Trumble | Strong Or Bold | Male | English |
| Tsunami | Tidal wave | Unisex | English |
| Tucker | Someone who folds cloth | Male | English |
| Tully | Prince of the people | Female | Gaelic |
| Turbo | Driven by a turbine - turbocharged | Unisex | English |
| Twister | A cyclone or tornado. | Unisex | English |