| Name | Meaning | Gender | Origin |
|---|
| Tallulah | leaping water | Female | Irish |
| Talulah | Leaping Water | Unisex | Native American |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | |
| Tansy | immortality, flower name | Female | Greek |
| Tarr | | Unisex | Hebrew |
| Tarragon | | Female | |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |
| Tatiana | | Female | |
| Tattoo | | Unisex | |
| Taxi | | Unisex | |
| Taylor | A tailor
| Female | English |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Tennessee Tabby | | Unisex | Hebrew |
| Tequila | An alcoholic liquor distilled from mescal. | Female | Spanish |
| Terra | earth | Female | Latin |
| The Duke | | Unisex | Hebrew |
| Thelma | nursing | Female | Literary |
| Thing | An entity or idea having it's own existence. | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thyme | | Female | Hebrew |
| Tiara | turban, flower name | Female | Latin |
| Tiburon | after a freeway exit in Marin County, CA | Unisex | |
| Tickle | | Unisex | |