| Name | Meaning | Gender | Origin |
|---|
| Stella | a star | Female | Latin |
| Stimpy | | Unisex | Hebrew |
| Stinker | | Unisex | |
| Stinky | | Unisex | |
| Stitch | after the character in the Lilo And Stitch cartoon | Unisex | |
| Stormy | | Female | |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Suki | beloved | Female | Japanese |
| Summer | summer season | Female | Word |
| Sweeny | | Unisex | Hebrew |
| Swiss | | Unisex | Hebrew |
| Tabitha | gazelle, roe-buck | Female | Aramaic |
| Tac | | Unisex | |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | |
| Talulah | Leaping Water | Unisex | Native American |
| Tang | | Unisex | |
| Tangerine | From Tangiers
| Female | Word |
| Tangy | | Unisex | |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | |
| Tao | Philosophy and religion of China. | Unisex | |
| Tarbaby | | Unisex | |
| Tash | born on Christmas Day | Female | English |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |
| Tazzy | | Unisex | |