| Tadeo | Tadeusz | Taha |
| Tahir | Tahsin | Talal |
| Talat | Talha | Tanguy |
| Tao | Taoufik | Tarek |
| Tarik | Taro | Tars |
| Taulant | Tayfun | Taylan |
| Tayron | Tayssir | Teddy |
| Tenzin | Téo | Teo |
| Teoman | Térence | Terry |
| Teun | Thanh | Theo |
| Théo | Theodore | Théodore |
| Théophile | Théotime | Thiago |
| Thian | Thias | Thibau |
| Thibaud | Thibault | Thibaut |
| Thibe | Thibeau | Thibeaux |
| Thibo | Thiebaut | Thiebe |
| Thieben | Thieme | Thiemen |
| Thierno | Thierry | Thies |
| Thijmen | Thijn | Thijs |
| Thiméo | Thimo | Thimoté |
| Thoby | Thoma | Thomas |
| Thor | Thorben | Thorgal |
| Thorre | Thorsten | Thuur |
| Thybe | Thylan | Thymen |
| Thyméo | Thymo | Tiago |
| Tiamo | Tian | Tibau |
| Tibaut | Tibbe | Tibe |
| Tibeau | Tiber | Tibo |
| Tibor | Ticho | Tidiane |
| Tiebe | Tieben | Tiele |
| Tieme | Tiemen | Ties |
| Tigane | Tijl | Tijmen |
| Tijn | Tijs | Till |
| Tille | Tillo | Tim |
| Timber | Timée | Timéo |
| Timeo | Timmy | Timo |
| Timon | Timoté | Timothé |
| Timothée | Timothy | Timoty |
| Timour | Timur | Timy |
| Tino | Tinus | Tist |
| Titien | Titouan | Titus |
| Tiziano | Tjardo | Tjebbe |
| Tjendo | Tjenne | Tjorben |
| Tjorven | Tjörven | Tobe |
| Tobey | Tobi | Tobias |
| Toby | Toine | Tolga |
| Tom | Toma | Tomás |
| Tomas | Tommie | Tommy |
| Tomy | Toni | Tony |
| Toon | Torbe | Torben |
| Tore | Torn | Torr |
| Torre | Torsten | Toto |
| Toufik | Travis | Treasure |
| Tristan | Tristen | Troy |
| Trystan | Tugra | Tunahan |
| Tuomas | Turhan | Tuur |
| Twan | Ty | Tyano |
| Tybe | Tybo | Tycho |
| Tye | Tygo | Tyler |
| Tylian | Tyméo | Tymo |
| Tymon | Tyr | Tyron |
| Tyrone | Tysen | Tyson |