| Name | Meaning | Gender | Origin |
|---|
| Star | Star | Female | Latin |
| Stardust | | Unisex | Hebrew |
| Starlight | | Unisex | Hebrew |
| Stella | Star | Female | Latin |
| Stetson | Son of Stephen | Male | English |
| Stimpy | | Unisex | Hebrew |
| Stinker | | Unisex | Hebrew |
| Stinkie | | Unisex | Hebrew |
| Stinky | | Unisex | Hebrew |
| Stitch | After the character in the Lilo And Stitch cartoon | Unisex | English |
| Storm | Violent weather | Female | English |
| Stormy | Violent weather | Unisex | English |
| Suede | Swedish | Unisex | English |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | English |
| Suki | To like | Female | Japanese |
| Sully | Keen eye | Male | Gaelic |
| Sunny | Filled with sunlight | Male | English |
| Sweeny | | Male | Hebrew |
| Tabitha | Gazelle | Female | Aramaic |
| Taboo | | Unisex | Hebrew |
| Tac | | Unisex | Hebrew |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | English |
| Taffy | Beloved | Female | Welsh |
| Talulah | Choctaw Name Meaning "Leaping Water." | Female | English |
| Tana | Fairy Queen | Female | Slavic |
| Tang | | Unisex | Hebrew |
| Tango | | Unisex | Hebrew |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tanner | Tanner | Male | English |
| Tao | Apple | Male | Vietnamese |