| Name | Meaning | Gender | Origin |
|---|
| Tarot | | Male | Hebrew |
| Tavin | A nickname for Gustav royal staff.
| Male | |
| Taz | | Male | |
| Terrance | Roman Clan Name. | Unisex | English |
| Thaddeus | Praise be to God | Male | Aramaic |
| Thai | | Unisex | |
| Thai | | Unisex | |
| Theodore | gift of God | Male | Greek |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Timber | Wood used as a building material. Also timber-wolf. | Male | Nature |
| Tobias | From the Hebrew Tobiah Jah is good.
| Male | Greek |
| Toblerone | | Male | Hebrew |
| Toby | God is Good | Male | English |
| Tom Tom | | Male | Hebrew |
| Tortie | | Male | |
| Trevor | Neville's toad.
| Male | Welsh |
| Troy | Descendant of the curly haired ones | Male | Irish |
| Tuck | To make folds in, or to put in a snug spot. | Unisex | |
| Tucker | Tucker of doth
| Male | English |
| Tyrell | Derivative of the Scandinavian god of battle Tyr. Tuesday was named for Tyr.
| Male | |
| Tyrelle | Derivative of the Scandinavian god of battle Tyr. Tuesday was named for Tyr.
| Male | |
| Tyson | son of a German, son of Ty | Male | English |
| Utopia | | Male | |
| Valmont | | Male | Hebrew |