| Name | Meaning | Gender | Origin |
|---|
| Stimpy | | Unisex | Hebrew |
| Stinker | | Unisex | Hebrew |
| Stinkie | | Unisex | Hebrew |
| Stinky | | Unisex | Hebrew |
| Stitch | After the character in the Lilo And Stitch cartoon | Unisex | English |
| Stormy | Violent weather | Unisex | English |
| Suede | Swedish | Unisex | English |
| Sully | Keen eye | Male | Gaelic |
| Sunny | Filled with sunlight | Male | English |
| Sweeny | | Male | Hebrew |
| Taboo | | Unisex | Hebrew |
| Tac | | Unisex | Hebrew |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | English |
| 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 |
| Taz | Wild Animal, Thrid Born | Unisex | American |
| Teddy | Gift of God | Male | Greek |
| Thanos | Noble | Male | English |
| The | | Unisex | Hebrew |
| Thor | Thunder | Male | Norse |
| Thunder | Stormy Tempered | Unisex | English |
| Tiger | Tiger | Unisex | English |
| Tiki | Maori figure representing an ancestor. A wooden or stone image of a Polynesian god. | Unisex | English |
| Tiko | | Unisex | Hebrew |
| Timmy | To honor God, to fear God | Male | Greek |
| Tinkerbell | | Unisex | Hebrew |
| Tipper | Nickname And Variant Of The Irish Name Tabar Meaning A Well. | Unisex | English |