| Thomas Pynchon | Thomas Pynchon |
| Thomas Samuel Kuhn | Thomas Samuel Kuhn |
| Thomas Stearns Eliot | Thomas Stearns Eliot |
| Thomas Vermaelen | Thomas Vermaelen |
| Thomas Vinterberg | Thomas Vinterberg |
| Thomas Young | Thomas Young |
| Thomas-Robert Bugeaud | Thomas Robert Bugeaud |
| Thomen Stauch | Thomas Stauch |
| Thomisidae | Běžníkovití |
| Thompson | Thompson |
| Thomson | Thomson |
| thon | tuňák |
| Thongwa Dönden | Thongwa Döndän |
| Thor | Thór |
| Thor Heyerdahl | Thor Heyerdahl |
| thoracique | hrudní |
| Thoralf Skolem | Thoralf Skolem |
| thorax | hrudník |
| Thorgal | Thorgal |
| Thorin II Écu-de-Chêne | Thorin Pavéza |
| Thorismond | Thorismund |
| thorium | thorium |
| Thorstein Veblen | Thorstein Veblen |
| Thot | Thovt |
| Thoune | Thunské jezero |
| Thrace | Thrákie |
| Thraces | Thrákové |
| Thrasamund | Thrasamund |
| Thrash metal | Thrash metal |
| Thrasher | Thrasher - Skater Of The Year |
| Thrasymaque | Thrasymachos z Chalkedónu |
| Thrawn | Velkoadmirál Thrawn |
| Three Cheers for Sweet Revenge | Three Cheers for The Sweet Revenge |
| Three Mile Island | Three Mile Island |
| Thrombocyte | Krevní destička |
| thrombocytopénie | trombocytopenie |
| thrombose | trombóza |
| thrombus | trombus |
| thréonine | threonin |
| Thubten Chökyi Nyima | Lozang Thubtän Čhökji |
| Thubten Gyatso | Thubtän Gjamccho |
| Thucydide | Thúkýdidés |
| Thug | Thugové |
| Thujone | Thujon |
| Thule | Thule |
| thulium | thulium |
| Thulé | Thule |
| Thuringe | Durynsko |
| Thuringes | Durynkové |
| Thuya géant | Zerav obrovský |
| Thuya géant de Californie | Zerav obrovský |
| Thyeste | Thyestés |
| thylacine | vakovlk |
| Thylacinidae | Vakovlkovití |
| Thylacinus cynocephalus | Vakovlk |
| Thylakoïde | Thylakoid |
| Thylogale stigmatica | Klokan znamenaný |
| thym | tymián |
| Thymallus | Lipan podhorní |
