| Name | Meaning | Gender | Origin |
|---|
| Tazz | | Unisex | |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Tennessee | | Male | Hebrew |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| 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 | |
| Tobias | From the Hebrew Tobiah Jah is good.
| Male | Greek |
| 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 | |
| Trinket | | Unisex | |
| Trixie | she who brings happiness | Female | Latin |
| Trixie | she who brings happiness | Female | Latin |
| Truffles | Ball shaped chocolate | Unisex | |
| Tweety | | Unisex | Hebrew |
| Twilight | | Unisex | |
| Vamp | | Unisex | Hebrew |
| Vandal | | Male | Hebrew |
| Vanish | | Unisex | Hebrew |
| Velvet | Soft
| Female | English |
| Vinnie | Victorious, Conqueror | Female | English |