| Name | Meaning | Gender | Origin |
|---|
| Thomas | Twin
| Male | Aramaic |
| Tiara | turban, flower name | Female | Latin |
| 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 | |
| Timber | Wood used as a building material. Also timber-wolf. | Male | Nature |
| Timothy | honoring God | Male | Greek |
| Tink | | Unisex | |
| Tippi | | Female | |
| Titan | | Male | |
| Tizzy | | Female | Hebrew |
| Toby | God is Good | Male | English |
| Tom And Huck | | Male | Hebrew |
| Toms | | Unisex | |
| Toodles | Character from Mickey Mouse
| Female | |
| Toth | | Unisex | |
| Toulouse | after a kitten in the movie Aristocats | Male | |
| Treyza | | Unisex | |
| Triplett | | Unisex | |
| Tripp | traveler | Male | Word |
| Tristan | A knight
| Male | Celtic |
| Trix | | Unisex | |
| Trixie | she who brings happiness | Female | Latin |
| Trixie | she who brings happiness | Female | Latin |