| Name | Meaning | Gender | Origin |
|---|
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Teeko | | Unisex | Hebrew |
| Tess | fourth born | Female | English |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Thunder | Sound produced from lightning | Unisex | |
| Tibbs | | Unisex | Hebrew |
| Tiddles | | Unisex | |
| Tiger Lily | | Unisex | |
| Tiki | Maori figure representing an ancestor. A wooden or stone image of a Polynesian god. | Unisex | |
| Tiko | | Unisex | Hebrew |
| Tillie | battle mighty | Female | English |
| Timmy | From Timothy - Honoring God | Unisex | |
| Tina | River
| Female | English |
| Tinkerbell | | Unisex | |
| Tinman | | Unisex | Hebrew |
| Tipper | Nickname And Variant Of The Irish Name Tabar Meaning A Well. | Female | Irish |
| Titch | Tiny | Unisex | |
| Tizzy | | Female | Hebrew |
| Tofu | | Unisex | |
| Toot | | Unisex | Hebrew |
| Topaz | A yellow gemstone | Female | Greek |
| Toska | | Unisex | Hebrew |
| Toto | | Unisex | |
| Tranquility | | Female | Hebrew |