| thon | tuna |
| thon rouge | bluefin tuna |
| Thongwa Dönden | Thongwa Dönden |
| Thonier | Tunny-fishing boat |
| Thonon-les-Bains | Thonon-les-Bains |
| Thoosa | Thoosa |
| Thor | Thor |
| Thor Heyerdahl | Thor Heyerdahl |
| Thor Vilhjálmsson | Thor Vilhjálmsson |
| Thora | Torah |
| Thora Birch | Thora Birch |
| Thoracica | Thoracica |
| thoracique | thoracic |
| Thoracoscopie | Thoracoscopy |
| Thoralf Skolem | Thoralf Skolem |
| Thorame-Haute | Thorame-Haute |
| thorax | breast |
| Thorbjørn Jagland | Thorbjørn Jagland |
| Thorfinn Karlsefni | Thorfinn Karlsefni |
| Thorgal | Thorgal |
| Thorigne-Fouillard | Thorigne-Fouillard |
| Thorigné-Fouillard | Thorigné-Fouillard |
| Thorin II Écu-de-Chêne | Thorin Oakenshield |
| Thorismond | Thorismund |
| thorium | thorium |
| Thorrablot | Þorramatur |
| Thorrington | Thorrington |
| Thorstein Veblen | Thorstein Veblen |
| thorybisme | thorybism |
| Thossfell | Thossfell |
| Thot | Thoth |
| Thouaret | Thouaret |
| Thouars | Thouars |
| Thoughts Of A Predicate Felon | Thoughts Of A Predicate Felon |
| Thoune | Thun |
| Thourioi | Thurii |
| Thousand Sons | Thousand Sons |
| Thoutmôsis | Thutmose |
| Thoutmôsis Ier | Thutmose I |
| Thoutmôsis II | Thutmose II |
| Thoutmôsis III | Thutmose III |
| Thoutmôsis IV | Thutmose IV |
| THQ | THQ |
| Thrace | Thrace |
| Thraces | Thracians |
| Thranduil | Thranduil |
| Thrasamund | Thrasamund |
| Thrasivoulos Zaimis | Thrasivoulos Zaimis |
| Thrasybule | Thrasybulus |
| Thrasymaque | Thrasymachus |
| Thrawn | Grand Admiral Thrawn |
| Three Cheers for Sweet Revenge | Three Cheers for Sweet Revenge |
| Three Days Grace | Three Days Grace |
| Three Mile Island | Three Mile Island accident |
| Three Places in New England | Three Places in New England |
| Three-point Shootout | Three-point Shootout |
| Threskiornis | Threskiornis |
| Threskiornis melanocephalus | Black-headed Ibis |
| Threskiornis molucca | Australian White Ibis |
| Threskiornis spinicollis | Straw-necked Ibis |
| Threskiornithidae | Threskiornithidae |
| thrombocyte | thrombocyte |
| thrombocytopénie | thrombocytopenia |
| Thrombocytémie essentielle | Essential thrombocytosis |
| Thrombophilie | Thrombophilia |
| Thrombophilie par mutation du facteur V | Factor V Leiden |
| thrombose | thrombosis |
| thrombose coronaire | coronary thrombosis |
| thrombose coronarienne | coronary thrombosis |
| Thromboxane | Thromboxane |
| thrombus | thrombus |
| ThrustSSC | ThrustSSC |
| Thrymr | Thrymr |
| Thrymskvida | Þrymskviða |
| Thryonomys | Cane rat |
| thréonine | threonine |
| Thrúd | Þrúðr |
| Thuban | Thuban |
| Thucydide | Thucydides |
| Thueyts | Thueyts |
| Thufir Hawat | Thufir Hawat |
| Thug Life | Thug Life |
| Thujone | Thujone |
| Thule | Thule |
| thulium | thulium |
| Thulé | Thule |
| Thun | Thun |
| Thunbergia | Thunbergia |
| Thunbergia alata | Thunbergia alata |
| Thunbergia mysorensis | Thunbergia mysorensis |
| Thunderbirds | Thunderbirds |
| Thunderbirds de Seattle | Seattle Thunderbirds |
| Thunderstick | Thunderstick |
| thune | dosh |
| Thunnus maccoyii | Southern bluefin tuna |
| Thunnus thynnus | Northern bluefin tuna |
| Thunstetten | Thunstetten |
| Thur | Thur River |
| Thurgood Marshall | Thurgood Marshall |
| Thurgovie | Thurgau |
