| Name | Meaning | Gender | Origin |
|---|
| Teacup | | Female | Hebrew |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Terry | Latin clan name of uncertain meaning | Male | English |
| Tess | fourth born | Female | English |
| 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 | |
| Tippy | | Male | |
| Toblerone | | Male | Hebrew |
| Todd | fox | Male | English |
| Tokyo | | Unisex | Hebrew |
| Tolstoy | | Male | |
| Tonka | | Male | |
| Toodles | Character from Mickey Mouse
| Female | |
| Toots | | Male | Hebrew |
| Trisha | Latin, noble, patrician | Female | English |
| Trude | Fighting woman
| Female | |
| Trystan | Calmitous, From an ancient Celtic prince. Variant of Tristan.
| Male | |
| Tuxedo | | Unisex | |
| Tyrell | Derivative of the Scandinavian god of battle Tyr. Tuesday was named for Tyr.
| Male | |
| Tyrone | From Owen's territory. County Tyrone in Ireland. The late actor Tyrone Power.
| Male | Irish |
| Tyronne | From Owen's territory. County Tyrone in Ireland. The late actor Tyrone Power.
| Male | |
| Tzvi | Deer
| Male | |
| Urquhart | From the fount on the knoll
| Male | |