word | | Country name |
| Tanzania | Tanzania | conventional long form: United Republic of Tanzania conventional short form: Tanzania local long form: Jamhuri ya Muungano wa Tanzania local short form: Tanzania former: United Republic of Tanganyika and Zanzibar |
| tasavalta | Finland | conventional long form: Republic of Finland conventional short form: Finland local long form: Suomen tasavalta/Republiken Finland local short form: Suomi/Finland |
| tay | Timor-Leste | conventional long form: Democratic Republic of Timor-Leste (pronounced TEE-mor LESS-tay) conventional short form: Timor-Leste local long form: Republika Demokratika Timor Lorosa'e [Tetum]; Republica Democratica de Timor-Leste ... |
| Tchad | Chad | conventional long form: Republic of Chad conventional short form: Chad local long form: Republique du Tchad/Jumhuriyat Tshad local short form: Tchad/Tshad |
| TCI | Turks and Caicos Islands | conventional long form: none conventional short form: Turks and Caicos Islands abbreviation: TCI |
| Tebie | Hong Kong | conventional long form: Hong Kong Special Administrative Region conventional short form: Hong Kong official long form: Xianggang Tebie Xingzhengqu official short form: Xianggang abbreviation: HK |
| Tebie | Macau | conventional long form: Macau Special Administrative Region conventional short form: Macau official long form: Aomen Tebie Xingzhengqu (Chinese); Regiao Administrativa Especial de Macau (Portuguese) official short form: Aomen (Chinese); Macau (Portuguese) |
| TEE | Timor-Leste | conventional long form: Democratic Republic of Timor-Leste (pronounced TEE-mor LESS-tay) conventional short form: Timor-Leste local long form: Republika Demokratika Timor Lorosa'e [Tetum]; Republica Democratica de Timor-Leste ... |
| Terres | French Southern and Antarctic Lands | ... Southern and Antarctic Lands conventional short form: French Southern and Antarctic Lands local long form: Territoire des Terres Australes et Antarctiques Francaises local short form: Terres Australes et Antarctiques Francaises abbreviation: TAAF |
| Territoire | French Southern and Antarctic Lands | ... French Southern and Antarctic Lands conventional short form: French Southern and Antarctic Lands local long form: Territoire des Terres Australes et Antarctiques Francaises local short form: Terres Australes et Antarctiques Francaises abbreviation ... |