ISO 639:t

| tqw |  |  | B | Ö | Tonkawa |   |
| tra |  |  | B | Y | Tirahi |   |
| trb |  |  | B | Y | Terebu |   |
| trc |  |  | B | Y | Triqui, Copala |   |
| trd |  |  | B | Y | Turi |   |
| tre |  |  | B | Y | Tarangan, East |   |
| trf |  |  | B | Y | Trinidadian Creole English |   |
| trg |  |  | B | Y | Lishán Didán |   |
| trh |  |  | B | Y | Turaka |   |
| tri |  |  | B | Y | Trió |   |
| trj |  |  | B | Y | Toram |   |
| trl |  |  | B | Y | Traveller Scottish |   |
| trm |  |  | B | Y | Tregami |   |
| trn |  |  | B | Y | Trinitario |   |
| tro |  |  | B | Y | Naga, Tarao |   |
| trp |  |  | B | Y | Kok Borok |   |
| trq |  |  | B | Y | Triqui, San Martín Itunyoso |   |
| trr |  |  | B | Y | Taushiro |   |
| trs |  |  | B | Y | Triqui, Chicahuaxtla |   |
| trt |  |  | B | Y | Tunggare |   |
| tru |  |  | B | Y | Turoyo |   |
| trv |  |  | B | Y | Taroko |   |
| trw |  |  | B | Y | Torwali |   |
| trx |  |  | B | Y | Tringgus |   |
| try |  |  | B | Ö | Turung |   |
| trz |  |  | B | Y | Torá |   |
| tsa |  |  | B | Y | Tsaangi |   |
| tsb |  |  | B | Y | Tsamai |   |
| tsc |  |  | B | Y | Tswa |   |
| tsd |  |  | B | Y | Tsakonian |   |
| tse |  |  | B | Y | Tunisian Sign Language |   |
| tsf |  |  | B | Y | Tamang, Southwestern |   |
| tsg |  |  | B | Y | Tausug |   |
| tsh |  |  | B | Y | Tsuvan |   |
| tsi | tsi |  | B | Y | Tsimshian |   |
| tsj |  |  | B | Y | Tshangla |   |
| tsk |  |  | B | Y | Tseku |   |
| tsl |  |  | B | Y | Ts'ün-Lao |   |
| tsm |  |  | B | Y | Turkish Sign Language |   |
| tsn | tsn | tn | B | Y | Tswana |   |
| tso | tso | ts | B | Y | Tsonga |   |
| tsp |  |  | B | Y | Toussian, Northern |   |
| tsq |  |  | B | Y | Thai Sign Language |   |
| tsr |  |  | B | Y | Akei |   |
| tss |  |  | B | Y | Taiwan Sign Language |   |
| tsu |  |  | B | Y | Tsou |   |
| tsv |  |  | B | Y | Tsogo |   |
| tsw |  |  | B | Y | Tsishingini |   |
| tsx |  |  | B | Y | Mubami |   |
| tsz |  |  | B | Y | Purepecha |   |
| tta |  |  | B | Ö | Tutelo |   |
| ttb |  |  | B | Y | Gaa |   |
| ttc |  |  | B | Y | Tektiteko |   |
| ttd |  |  | B | Y | Tauade |   |
| tte |  |  | B | Y | Bwanabwana |   |
| ttf |  |  | B | Y | Tuotomb |   |
| ttg |  |  | B | Y | Tutong 2 |   |
| tth |  |  | B | Y | Ta'oih, Upper |   |
| tti |  |  | B | Y | Tobati |   |
| ttj |  |  | B | Y | Tooro |   |
| ttk |  |  | B | Y | Totoro |   |
| ttl |  |  | B | Y | Totela |   |
| ttm |  |  | B | Y | Tutchone, Northern |   |
| ttn |  |  | B | Y | Towei |   |
| tto |  |  | B | Y | Ta'oih, Lower |   |
| ttp |  |  | B | Y | Tombelala |   |
| ttq |  |  | B | Y | Tamajaq, Tawallammat |   |
| ttr |  |  | B | Y | Tera |   |
| tts |  |  | B | Y | Thai, Northeastern |   |
| ttt |  |  | B | Y | Tat, Muslim |   |
| ttu |  |  | B | Y | Torau |   |
| ttv |  |  | B | Y | Titan |   |
| ttw |  |  | B | Y | Kenyah, Tutoh |   |
| ttx |  |  | B | Y | Tutong 1 |   |
| tty |  |  | B | Y | Sikaritai |   |
| ttz |  |  | B | Y | Tsum |   |
| tua |  |  | B | Y | Wiarumus |   |
| tub |  |  | B | Y | Tübatulabal |   |
| tuc |  |  | B | Y | Mutu |   |
| tud |  |  | B | Ö | Tuxá |   |
| tue |  |  | B | Y | Tuyuca |   |
| tuf |  |  | B | Y | Tunebo, Central |   |
| tug |  |  | B | Y | Tunia |   |
| tuh |  |  | B | Y | Taulil |   |
| tui |  |  | B | Y | Tupuri |   |
| tuj |  |  | B | Y | Tugutil |   |
| tuk | tuk | tk | B | Y | Turkmen | Türkmence |
| tul |  |  | B | Y | Tula |   |
| tum | tum |  | B | Y | Tumbuka |   |
| tun |  |  | B | Ö | Tunica |   |
| tuo |  |  | B | Y | Tucano |   |
| tuq |  |  | B | Y | Tedaga |   |
| tur | tur | tr | B | Y | Turkish | Türkçe |
| tus |  |  | B | Y | Tuscarora |   |
| tuu |  |  | B | Y | Tututni |   |
| tuv |  |  | B | Y | Turkana |   |
| tux |  |  | B | Ö | Tuxináwa |   |
| tuy |  |  | B | Y | Tugen, North |   |
| tuz |  |  | B | Y | Turka |   |
| tva |  |  | B | Y | Vaghua |   |
| tvd |  |  | B | Y | Tsuvadi |   |
| tve |  |  | B | Y | Te'un |   |
| tvk |  |  | B | Y | Ambrym, Southeast |   |
| tvl | tvl |  | B | Y | Tuvalu |   |
| tvm |  |  | B | Y | Tela-Masbuar |   |
| tvn |  |  | B | Y | Tavoyan |   |
| tvo |  |  | B | Y | Tidore |   |
| tvs |  |  | B | Y | Taveta |   |
| tvt |  |  | B | Y | Naga, Tutsa |   |
| tvw |  |  | B | Y | Sedoa |   |
| tvy |  |  | B | Ö | Pidgin, Timor |   |
| twa |  |  | B | Ö | Twana |   |
| twb |  |  | B | Y | Tawbuid, Western |   |
| twc |  |  | B | Ö | Teshenawa |   |
| twd |  |  | B | Y | Twents |   |
| twe |  |  | B | Y | Tewa (Indonesia) |   |
| twf |  |  | B | Y | Tiwa, Northern |   |
| twg |  |  | B | Y | Tereweng |   |
| twh |  |  | B | Y | Tai Dón |   |
| twi | twi | tw | B | Y | Twi |   |
| twl |  |  | B | Y | Tawara |   |
| twn |  |  | B | Y | Twendi |   |
| two |  |  | B | Y | Tswapong |   |
| twp |  |  | B | Y | Ere |   |
| twq |  |  | B | Y | Tasawaq |   |
| twr |  |  | B | Y | Tarahumara, Southwestern |   |
| twt |  |  | B | Ö | Turiwára |   |
| twu |  |  | B | Y | Termanu |   |
| tww |  |  | B | Y | Tuwari |   |
| twx |  |  | B | Y | Tewe |   |
| twy |  |  | B | Y | Tawoyan |   |
| txa |  |  | B | Y | Tombonuwo |   |
| txb |  |  | B | A | Tokharian B |   |
| txc |  |  | B | Ö | Tsetsaut |   |
| txe |  |  | B | Y | Totoli |   |
| txg |  |  | B | A | Tangut |   |
| txh |  |  | B | A | Thracian |   |
| txi |  |  | B | Y | Ikpeng |   |
| txm |  |  | B | Y | Tomini |   |
| txn |  |  | B | Y | Tarangan, West |   |
| txo |  |  | B | Y | Toto |   |
| txq |  |  | B | Y | Tii |   |
| txr |  |  | B | A | Tartessian |   |
| txs |  |  | B | Y | Tonsea |   |
| txt |  |  | B | Y | Citak |   |
| txu |  |  | B | Y | Kayapó |   |
| txx |  |  | B | Y | Tatana |   |
| txy |  |  | B | Y | Malagasy, Tanosy |   |
| tya |  |  | B | Y | Tauya |   |
| tye |  |  | B | Y | Kyenga |   |
| tyh |  |  | B | Y | O'du |   |
| tyi |  |  | B | Y | Teke-Tsaayi |   |
| tyj |  |  | B | Y | Tai Do |   |
| tyl |  |  | B | Y | Thu Lao |   |
| tyn |  |  | B | Y | Kombai |   |
| typ |  |  | B | Y | Thaypan |   |
| tyr |  |  | B | Y | Tai Daeng |   |
| tys |  |  | B | Y | Tày Sa Pa |   |
| tyt |  |  | B | Y | Tày Tac |   |
| tyu |  |  | B | Y | Kua |   |
| tyv | tyv |  | B | Y | Tuvinian |   |
| tyx |  |  | B | Y | Teke-Tyee |   |
| tyz |  |  | B | Y | Tày |   |
| tza |  |  | B | Y | Tanzanian Sign Language |   |
| tzb |  |  | B | Y | Tzeltal, Bachajón |   |
| tzc |  |  | B | Y | Tzotzil, Chamula |   |
| tze |  |  | B | Y | Tzotzil, Chenalhó |   |
| tzh |  |  | B | Y | Tzeltal, Oxchuc |   |
| tzj |  |  | B | Y | Tzutujil, Eastern |   |
| tzm |  |  | B | Y | Tamazight, Central Atlas |   |
| tzn |  |  | B | Y | Tugun |   |
| tzo |  |  | B | Y | Tzotzil, Venustiano Carranza |   |
| tzs |  |  | B | Y | Tzotzil, San Andrés Larrainzar |   |
| tzt |  |  | B | Y | Tzutujil, Western |   |
| tzu |  |  | B | Y | Tzotzil, Huixtán |   |
| tzx |  |  | B | Y | Tabriak |   |
| tzz |  |  | B | Y | Tzotzil, Zinacantán |   |