| Name | Meaning | Gender | Origin |
|---|
| Tabatha | Sweet and gentle. One who cares.
| Female | |
| Tabby | | Unisex | |
| Tabitha | gazelle, roe-buck | Female | Aramaic |
| Talia | Dew of heaven
| Female | Hebrew |
| Talia | Dew of heaven
| Female | Hebrew |
| Tammy | Abbreviation of Thomasina and Tamara.
| Female | English |
| Tara | A hill where the kings met
| Female | Irish |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |
| Tazz | | Unisex | |
| Tennessee | | Male | Hebrew |
| Tess | fourth born | Female | English |
| Tessa | Abbreviation of Teresa which is a popular saint's name of uncertain meaning.
| Female | English |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Tiddles | | Unisex | |
| 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 |
| Tigger | from Winnie the Pooh | Unisex | |
| Timmy | From Timothy - Honoring God | Unisex | |
| Tiny | Extremely small | Unisex | |
| Toby | God is Good | Male | English |
| Tom | Bartender at the Leaky Cauldron.
| Male | English |
| Tommy | From Thomas - The twin. | Male | English |
| Tootsie | A girl or young woman. | Unisex | |