| 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 |
| Suki | beloved | Female | Japanese |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |
| Sushi | Raw fish. | Unisex | |
| Sushi | Raw fish. | Unisex | |
| Sweet Pea | | Female | |
| Sydney | from city of St. Denis | Female | |
| Tahiti | | Female | |
| Tallulah | leaping water | Female | Irish |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |
| Teacup | | Female | Hebrew |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Tess | fourth born | Female | English |
| Tessa | Abbreviation of Teresa which is a popular saint's name of uncertain meaning.
| Female | English |
| Thea | goddess, sort | Female | Greek |
| Tiara | turban, flower name | Female | Latin |
| Tinkerbell | | Unisex | |
| Tipsy | | Unisex | |
| Tizzy | | Female | Hebrew |
| Tootsie | A girl or young woman. | Unisex | |
| Tricky | | Unisex | Hebrew |
| Trixie | she who brings happiness | Female | Latin |
| Trixie | she who brings happiness | Female | Latin |
| Trudy | beloved | Female | |