| Name | Meaning | Gender | Origin |
|---|
| Speedbump | | Unisex | |
| Speedo | | Unisex | |
| Speedy | Rapid motion, swift. | Unisex | |
| Spinner | | Unisex | |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Female | Word |
| Spitfire | | Unisex | |
| Sticky | | Unisex | Hebrew |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Suzy | Lily | Unisex | English |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | |
| Tara | A hill where the kings met
| Female | Irish |
| Tempest | storm | Female | Word |
| Thumper | To walk with heavy steps | Unisex | |
| Tia | Aunt
| Female | Spanish |
| Tigger | from Winnie the Pooh | Unisex | |
| Tornado | Violently rotating funnel shaped cloud. | Female | Spanish |
| Torque | | Unisex | Hebrew |
| Trixie | she who brings happiness | Female | Latin |
| Trixie | she who brings happiness | Female | Latin |
| Tsunami | Tidal wave | Unisex | |
| Turbo | Driven by a turbine - turbocharged | Unisex | |
| Twister | A cyclone or tornado. | Unisex | |
| Vertigo | | Unisex | Hebrew |
| Vida | life | Female | Spanish |