| Islah | - | Muslim Name | Tertius | - | Biblical Name |
| Isley | - | English Name | Tertullus | - | Biblical Name |
| Tetrarch | - | Biblical Name | Israa | - | Muslim Name |
| Thaddeus | - | Biblical Name | Issabella | - | Hebrew Name |
| Thahash | - | Biblical Name | Ivana | - | Slavic Name |
| Thamah | - | Biblical Name | Ivory | - | English Name |
| Ivyanna | - | English Name | Tharah | - | Biblical Name |
| Thebez | - | Biblical Name | Thelasar | - | Biblical Name |
| Theophilus | - | Biblical Name | Thessalonica | - | Biblical Name |
| Theudas | - | Biblical Name | Thummim | - | Biblical Name |
| Thyatira | - | Biblical Name | Tibbath | - | Biblical Name |
| Tiberias | - | Biblical Name | Tiberius | - | Biblical Name |
| Tibni | - | Biblical Name | Tidal | - | Biblical Name |
| Tiglath-pileser | - | Biblical Name | Tikvah | - | Biblical Name |
| Tilon | - | Biblical Name | Timeus | - | Biblical Name |
| Timnah | - | Biblical Name | Timnath | - | Biblical Name |
| Timnath-heres, or Timnath-serah | - | Biblical Name | Timon | - | Biblical Name |
| Timotheus | - | Biblical Name | Tiphsah | - | Biblical Name |
| Tirhakah | - | Biblical Name | Tiria | - | Biblical Name |
| Tirshatha | - | Biblical Name | Tirzah | - | Biblical Name |
| Tishbite | - | Biblical Name | Titus | - | Biblical Name |
| Toah | - | Biblical Name | Tob | - | Biblical Name |
| Tob-adonijah | - | Biblical Name | Tobiah, Tobijah | - | Biblical Name |
| Tochen | - | Biblical Name | Togarmah | - | Biblical Name |
| Tohu | - | Biblical Name | Toi | - | Biblical Name |
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