| Name | Meaning | Gender | Origin |
|---|
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | English |
| Sweetie | Sweetheart. | Unisex | English |
| Sybil | Female prophet | Female | Greek |
| Sydney | Wide meadow | Female | English |
| Sylvester | A forest | Male | Latin |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | English |
| Tahoe | Edge of the lake | Unisex | Native American |
| Taj | Crown | Male | Sanskrit |
| Talia | Dew of God | Female | Hebrew |
| Tallulah | Abundance, lady, princess | Female | Gaelic |
| Tania | Abbreviation Of Tatiana Which Is Feminine Of The Roman Family Clan Name Tatius. | Female | Latin |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tate | "Pleasant And Bright."Some Variants Are Tait, Taite, And Tayte. | Female | English |
| Teddy | Gift of God | Male | Greek |
| Tequila | An alcoholic liquor distilled from mescal. | Unisex | English |
| Terence | Uncertain | Male | Latin |
| Tessa | Harvester | Female | Greek |
| Thurston | Thor's stone, Thor's settlement | Male | English |
| Tinker | | Unisex | Hebrew |
| Tiny | Extremely small | Unisex | English |
| Tito | Giant | Unisex | Latin |
| Toby | God is good | Unisex | Hebrew |
| Tootsie | A girl or young woman. | Unisex | English |
| Trever | Prudent, Wise | Male | English |
| Trixie | Voyager through life | Female | Latin |
| Tucker | Someone who folds cloth | Male | English |
| Tuffy | | Unisex | Hebrew |
| Twiggy | | Unisex | Hebrew |
| Twix | Brand of chocolate bar. | Unisex | English |
| Tyler | Tile maker | Male | English |