| Name | Meaning | Gender | Origin |
|---|
| Tammy | Abbreviation of Thomasina and Tamara.
| Female | English |
| Tara | A hill where the kings met
| Female | Irish |
| Taz | | Male | |
| Tessa | Abbreviation of Teresa which is a popular saint's name of uncertain meaning.
| Female | English |
| Thumper | To walk with heavy steps | Unisex | |
| Tornado | Violently rotating funnel shaped cloud. | Female | Spanish |
| Trixy | Cheerful, Brings Joy | Unisex | Latin |
| Trouble | A cause of disturbance or difficulty. | Male | |
| Turbo | Driven by a turbine - turbocharged | Unisex | |
| Tyrell | Derivative of the Scandinavian god of battle Tyr. Tuesday was named for Tyr.
| Male | |
| Vroom Vroom | | Unisex | Hebrew |
| Walter | Powerful ruler
| Male | |
| Whitney | from thewhite island | Female | English |
| Wild | | Male | Hebrew |
| Wild Thing | | Unisex | Hebrew |
| Wilder | | Male | Hebrew |
| Willow | Slender:graceful. From the willow tree noted for slender graceful branches and leaves.
| Female | English |
| Wiz | | Unisex | Hebrew |
| Wolf | A grey carnivorous mammal, related to the Dog | Male | |
| Xena | One who is hospitable to strangers. Guest in Greek | Female | Greek |
| Zack | | Unisex | |
| Zebedee | | Male | |
| Ziggy | | Male | |
| Zippity | | Unisex | |
| Zippy | | Unisex | |