| Name | Meaning | Gender | Origin |
|---|
| Teri | Harvester | Girl | |
| Terra | Earth | Girl | Latin |
| Terrance | Instigator, Rub, Turn, Twist | Boy | Gaelic |
| Terrell | Stubborn | Boy | |
| Terrence | Instigator, Rub, Turn, Twist | Boy | Gaelic |
| Terri | Harvester | Girl | |
| Terrie | Harvester | Girl | |
| Terry | First of the people, King of nations | Boy | French |
| Tess | Harvester | Girl | |
| Tessa | Harvester | Girl | |
| Tessie | Harvester | Girl | |
| Tetty | God is my oath | Girl | |
| Tex | Person from Texas | Boy | |
| Thad | Courageous, Large hearted, Given of God | Boy | |
| Thaddeus | Courageous, Large hearted, Given of God | Boy | Latin |
| Thadeus | Courageous, Large hearted, Given of God | Boy | |
| Thady | Given of God | Boy | |
| Thane | Boy, Follower, Warrior, Noble Title | Boy | |
| Thea | Gift of God | Girl | |
| Theda | Gift of God | Girl | |
| Thelma | Will | Girl | Greek |
| Theo | Gift of God | Boy | |
| Theobald | People bold | Boy | Latin |
| Theodora | Gift of God | Girl | |
| Theodore | Gift of God | Boy | French |
| Theodosia | God Giving | Girl | |
| Thera | Harvester | Girl | |
| Theresa | Harvester | Girl | Spanish |
| Thom | Twin | Boy | |
| Thomas | Twin | Boy | Greek |
| Thomasin | Twin | Girl | |
| Thomasina | Twin | Girl | |
| Thomasine | Twin | Girl | |
| Thorley | Thorn bush settlement | Boy | |
| Thornton | Thorn bush settlement | Boy | |
| Thrud | Strength | Girl | Norse |
| Thurston | Thor's stone | Boy | Norse |
| Thutmose | Born of Djehuty (Thoth), Born of the Ibis | Boy | Egyptian |
| Thutmosis | Born of Djehuty (Thoth), Born of the Ibis | Boy | Egyptian |
| Thyrza | Pleasantness | Girl | |
| Tia | Nickname for names ending with - Tia | Girl | |
| Tiana | Follower of Christ | Girl | |
| Tianna | Follower of Christ | Girl | |
| Tiara | Life | Girl | |
| Tiarnach | Lord | Boy | Gaelic |
| Tiarnan | Little Lord | Boy | Gaelic |
| Tibby | People bold | Unisex | |
| Tiberius | Of the Tiber (river) | Boy | Roman |
| Tiernan | Little Lord | Boy | Gaelic |
| Tierney | Lord | Boy | Gaelic |
| Tierra | Earth | Girl | Spanish |
| Tiffani | Manifestation of God | Girl | |
| Tiffany | Manifestation of God | Girl | Medieval |
| Tiffiny | Manifestation of God | Girl | |
| Tikva | Hope | Unisex | |
| Tikvah | Hope | Unisex | Hebrew |
| Tilda | Mighty in battle | Girl | |
| Till | Mighty in battle | Girl | |
| Tillie | Mighty in battle | Girl | |
| Tilly | Mighty in battle | Girl | |
| Tim | To Honor God | Boy | |
| Timmy | To Honor God | Boy | |