| Taylorisme | Scientific management |
| Tayseer Allouni | Tayseer Allouni |
| Tayside | Tayside |
| Taz | Tasmanian Devil |
| Taza-Al Hoceima-Taounate | Taza-Al Hoceima-Taounate |
| Tazio Nuvolari | Tazio Nuvolari |
| Taëf | Ta’if |
| Taï Sitou Rinpoché | Tai Situpa |
| Taïfa | Taifa |
| taïga | taiga |
| taïkonaute | taikonaut |
| Taïlandais | Thai |
| Taïmouraz Mamsourov | Taymuraz Mamsurov |
| Taïmyr | Taimyr |
| Taïmyrie | Taymyr Autonomous Okrug |
| Taïpan du désert | Fierce Snake |
| Taïs | Thai |
| Taïwan | Taiwan |
| taïwanais | Taiwanese |
| TB | TB |
| TBD Devastator | TBD Devastator |
| TBF Avenger | TBF Avenger |
| Tbilissi | Tbilisi |
| TBWA | TBWA |
| TC | TC |
| TC Matic | TC Matic |
| TCAO | Computer supported cooperative work |
| TCD Foudre | Foudre class landing platform dock |
| TCDD | Turkish State Railways |
| Tchad | Chad |
| Tchadien | Chadian |
| tchador | chador |
| tchakra | chakra |
| Tchamba | Tchamba |
| Tchang Kaï-chek | Chiang Kai-shek |
| tchao | goodbye |
| Tchapaev | Chapaev |
| Tchapaïevka | Chapayevka River |
| Tchaïkovski | Tchaikovsky |
| Tchebarkoul | Chebarkul |
| Tcheboksary | Cheboksary |
| Tcheka | Cheka |
| Tcheliabinsk | Chelyabinsk |
| Tcheptsa | Cheptsa River |
| Tcherepanovo | Cherepanovo |
| Tcherkassy | Cherkasy |
| Tcherkesse | Circassians |
| Tcherkessk | Cherkessk |
