| Name | Meaning | Gender | Origin |
|---|
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sullivan | black-eyed one | Male | Irish |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Suzie | | Female | |
| Sweet Pea | | Female | |
| Tadpole | | Unisex | Hebrew |
| Taffy | Sticky candy | Male | Welsh |
| Talitha | third leap | Female | Arabic |
| Teacup | | Female | Hebrew |
| Teagan | beautiful | Female | Irish |
| Teeny | | Unisex | |
| Thor | Viking mythology: the ruler of the weather | Male | Norse |
| Thumbellina | | Unisex | Hebrew |
| Tidbit | | Unisex | Hebrew |
| Tiffany | Manifestation of God | Female | Greek |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tink | | Unisex | |
| Tinkerbell | | Unisex | |
| Tinkerbelle | Named after the fairy... Peter Pan's little sidekick!
| Female | |
| Tiny | Extremely small | Unisex | |
| Titan | | Male | |
| Titch | Tiny | Unisex | |
| Tokyo | | Unisex | Hebrew |