| Name | Meaning | Gender | Origin |
|---|
| Tang | | Unisex | Hebrew |
| Tango | | Unisex | Hebrew |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Taz | Wild Animal, Thrid Born | Unisex | American |
| The | | Unisex | Hebrew |
| Thunder | Stormy Tempered | Unisex | English |
| Tiger | Tiger | Unisex | English |
| Tiki | Maori figure representing an ancestor. A wooden or stone image of a Polynesian god. | Unisex | English |
| Tiko | | Unisex | Hebrew |
| Tinkerbell | | Unisex | Hebrew |
| Tipper | Nickname And Variant Of The Irish Name Tabar Meaning A Well. | Unisex | English |
| Tito | Giant | Unisex | Latin |
| Tizzy | | Unisex | Hebrew |
| Toby | God is good | Unisex | Hebrew |
| Toxic | | Unisex | Hebrew |
| Tricky | | Unisex | Hebrew |
| Trip | Traveler | Unisex | English |
| Trouble | A cause of disturbance or difficulty. | Unisex | English |
| Troubles | | Unisex | Hebrew |
| Tsunami | Tidal wave | Unisex | English |
| Tuff | Fun spelling of tough; strong and resilient. | Unisex | English |
| Turkey | | Unisex | Hebrew |
| Twiggy | | Unisex | Hebrew |
| Twinkle | | Unisex | Hebrew |
| Twister | A cyclone or tornado. | Unisex | English |
| Uhura | After the female character in Star Trek | Unisex | English |
| Uncle | | Unisex | Hebrew |
| Uzi | My Strength | Unisex | English |
| Vegas | | Unisex | Hebrew |
| Von | Small | Unisex | Welsh |