| tuya | à toi |
| tuyo | le vôtre |
| Tuyona | Thujone |
| tuza | gaufre |
| Tuzla | Tuzla |
| tuátara | sphénodon |
| tuétano | moelle |
| TV | télévision |
| TV Aichi | Aichi Television Broadcasting |
| TV Globo | Rede Globo de Televisão |
| TV Grosswallstadt | TV Großwallstadt |
| TV Tokyo | TV Tōkyō |
| Tver | Tver |
| TVI | TVI |
| TVR | Televiziunea Română |
| TVXQ | TVXQ |
| Twann | Douanne |
| Twee pop | Twee pop |
| tweed | tweed |
| Twickenham Stadium | Stade de Twickenham |
| Twiggy | Twiggy |
| Twin Peaks | Mystères à Twin Peaks |
| twist | twist |
| Twistor | Théorie des twisteurs |
| twittear | tweeter |
| Two Cars In Every Garage And Three Eyes On Every Fish | Sous le signe du poisson |
| Two International Finance Centre | Two International Finance Center |
| two-step | pas de deux |
| Twofish | Twofish |
| Txiki Begiristain | Txiki Begiristain |
| Txistu | Txistu |
| Tycho Brahe | Tycho Brahe |
| Tylototriton | Tylototriton |
| Tyne y Wear | Tyne et Wear |
| Typha | Typhaceae |
| Typha latifolia | Massette à larges feuilles |
| Tyr | Týr |
| Tyra Banks | Tyra Banks |
| Tyranni | Tyranni |
| Tyrannidae | Tyrannidae sensu stricto |
| Tyrannosauridae | Tyrannosauridae |
| Tyrannosauroidea | Tyrannosauridae |
| Tyrannosaurus | Tyrannosaurus rex |
| Tyrannus savana | Tyran des savanes |
| Tyrese | Tyrese |
| Tyria jacobaeae | Goutte de sang |
| Tyrrell | Tyrrell Racing |
| Tyson Gay | Tyson Gay |
| Tyto alba | Chouette effraie |
| Tytonidae | Tytonidae |
| Tzadi | Tsadi |
| Tzadik | Tzadik Records |
| Tzannis Tzannetakis | Tzannis Tzannetakis |
| Tzedaká | Tsedaka |
| Tzeentch | Tzeentch |
| Tzipi Livni | Tzipi Livni |
| Tzotzil | Tzotzil |
| Tzvetan Todorov | Tzvetan Todorov |
| tábano | taon |
| Tábua | Tábua |
| Táchira | État de Táchira |
| tácitamente | sans réserve |
