| Name | Meaning | Gender | Origin |
|---|
| Taz | | Male | |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Thor | Viking mythology: the ruler of the weather | Male | Norse |
| Thumper | To walk with heavy steps | Unisex | |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger Lily | | Unisex | |
| Tigger | from Winnie the Pooh | Unisex | |
| Timmy | From Timothy - Honoring God | Unisex | |
| Tinkerbell | | Unisex | |
| Tiny Dancer | | Unisex | |
| Tippy | | Male | |
| Tipsy | | Unisex | |
| Toby | God is Good | Male | English |
| Tommy | From Thomas - The twin. | Male | English |
| Tootsie | A girl or young woman. | Unisex | |
| Trouble | A cause of disturbance or difficulty. | Male | |
| Tubby | | Unisex | |
| Tucker | Tucker of doth
| Male | English |
| Tuppence | British for two pence (coins) | Unisex | |
| Tux | | Unisex | |
| Tux | | Unisex | |
| Twiggy | | Unisex | |