| Name | Meaning | Gender | Origin |
|---|
| Terrance | Roman Clan Name. | Unisex | English |
| Terry | Latin clan name of uncertain meaning | Male | English |
| Thelma | nursing | Female | Literary |
| Theodore | gift of God | Male | Greek |
| Theresa | reaper | Female | English |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Tiffany | Manifestation of God | Female | Greek |
| Tim | Greek, honoring God | Male | Greek |
| Timothy | honoring God | Male | Greek |
| Tina | River
| Female | English |
| Todd | fox | Male | English |
| Tom | Bartender at the Leaky Cauldron.
| Male | English |
| Tommy | From Thomas - The twin. | Male | English |
| Toni | priceless one | Female | English |
| Tony | priceless one | Male | English |
| Tonya | Russian diminutive of Tatiana | Female | English |
| Tracey | Summer, Harvester | Unisex | English |
| Tracy | path, road | Male | |
| Travis | crossing | Male | |
| Troy | Descendant of the curly haired ones | Male | Irish |
| Tyler | An English surname frequently used as a first name.
| Male | English |
| Tyrone | From Owen's territory. County Tyrone in Ireland. The late actor Tyrone Power.
| Male | Irish |
| Valerie | valor, strong | Female | |
| Vanessa | a butterfly | Female | Literary |