| Thomas Muster | Thomas Muster |
| Thomas Müntzer | Thomas Münzer |
| Thomas Nagel | Thomas Nagel |
| Thomas Paine | Thomas Paine |
| Thomas Pynchon | Thomas Pynchon |
| Thomas Ravelli | Thomas Ravelli |
| Thomas Reiter | Thomas Reiter |
| Thomas Sankara | Thomas Sankara |
| Thomas Simpson | Thomas Simpson |
| Thomas Sørensen | Thomas Sørensen |
| Thomas Tallis | Thomas Tallis |
| Thomas Vermaelen | Thomas Vermaelen |
| Thomas Wolsey | Thomas Wolsey |
| Thomas Young | Thomas Young |
| Thomas-Alexandre Dumas | Aleksander Dumas |
| Thomisidae | Ukośnikowate |
| Thomás Klestil | Thomas Klestil |
| Thonburi | Thon Buri |
| Thor | Thor |
| Thor Heyerdahl | Thor Heyerdahl |
| Thora Birch | Thora Birch |
| Thorgal | Thorgal |
| Thorin Escudo de Roble | Thorin II Dębowa Tarcza |
| Thornton Wilder | Thornton Wilder |
| Thorondor | Thorondor |
| Thorstein Veblen | Thorstein Veblen |
| Thousand Island Dressing | Sos tysiąca wysp |
| Thranduil | Thranduil |
| Thrash metal | Thrash metal |
| Thrashcore | Thrashcore |
| Thraupidae | Tanagry |
| Thrawn | Thrawn |
| Three Cheers For Sweet Revenge | Three Cheers for Sweet Revenge |
| Three Days Grace | Three Days Grace |
| Three Mile Island | Wypadek w elektrowni jądrowej Three Mile Island |
| Threskiornis aethiopica | Ibis czczony |
| Threskiornis molucca | Ibis czarnopióry |
| Threskiornithidae | Ibisowate |
| Threskiornithinae | Ibisy |
| Thrinaxodon | Trinaksodon |
| Thrym | Thrym |
| Thuban | Thuban |
| Thubten Gyatso | Dalajlama XIII |
| Thuggee | Thugowie |
| Thuja occidentalis | Żywotnik zachodni |
| Thule | Thule |
| Thun | Thun |
| Thunbergia | Tunbergia |
| Thunderbirds | Thunderbirds |
| Thunnus | Tuńczyki |
| Thury | Thury |
| Thusis | Thusis |
| Thutmose | Totmes |
| THX | THX |
| Thylacinidae | Wilki workowate |
| Thylacinus cynocephalus | Wilk workowaty |
| Thylacoleo carnifex | Lew workowaty |
