| thermomètre | termómetro |
| Thermomètre et tensiomètre à mercure | Termómetro de mercurio |
| thermomètre médical | termómetro clínico |
| Thermomètre à résistance de platine | RTD |
| thermonucléaire | termonuclear |
| thermoplastique | termoplástico |
| thermopompe | termocompresor |
| Thermopyles | Termópilas |
| thermorésistant | resistente al calor |
| thermos | termo |
| Thermosiphon | Termosifón |
| thermosphère | termosfera |
| thermostat | termostato |
| thermoélectrique | termoeléctrico |
| thermoïonique | termoiónico |
| Theropoda | Theropoda |
| Thersite | Tersites |
| Thesmophories | Tesmoforias |
| Thespies | Tespias |
| Thespis | Tespis |
| Thessalie | Tesalia |
| Thessaloniké | Tesalónica de Macedonia |
| Thessalonique | Salónica |
| Theta Eridani | Theta Eridani |
| Theódoros Kolokotrónis | Theodoros Kolokotronis |
| Theódoros Papaloukás | Theodoros Papaloukas |
| Thiago Motta | Thiago Motta |
| Thibaud Ier de Blois | Teobaldo I de Navarra |
| Thibaud II de Navarre | Teobaldo II de Navarra |
| Thibaud III de Blois | Teobaldo I de Navarra |
| thibaude | arpillera |
| Thibaut Ier de Navarre | Teobaldo I de Navarra |
| Thibaut IV de Blois | Teobaldo II de Champaña |
| Thibron | Tibrón |
| Thich Nhat Hanh | Thich Nhat Hanh |
| Thick as a Brick | Thick as a Brick |
| Thierachern | Thierachern |
| Thierrens | Thierrens |
| Thierry | Teodorico |
| Thierry Boutsen | Thierry Boutsen |
| Thierry Henry | Thierry Henry |
| Thierry Ier | Teodorico I de Austrasia |
| Thierry II | Teoderico II |
| Thierry III | Teoderico III |
| Thierry IV | Teodorico IV |
| Thiers | Distrito de Thiers |
| Thimbu | Timbu |
| Thimphou | Timbu |
| Thimphu | Timbu |
| Thin Lizzy | Thin Lizzy |
| Thin-film transistor | TFT |
| Thing | thing |
| Thingol | Elwë |
| Thinis | Tinis |
| Think tank | Think tank |
| Thinocoridae | Thinocoridae |
| Thiol | Tiol |
| Thiopental | Tiopentato de sodio |
| Thiophène | Tiofeno |
| thiosulfate | tiosulfato |
| Thiotimoline | Tiotimolina |
| Thirteen | Thirteen |
| Thirteen Senses | Thirteen senses |
| This is England | This is England |
| This Time | This time |
| Thisbé | Thisbea |
| Thiumidir | Teodomiro |
| Thiès | Región de Thiès |
| Thiébaud Ier de Lorraine | Teobaldo I de Navarra |
| Thiébaud II de Lorraine | Teobaldo II de Navarra |
| Thiébaut Ier de Bar | Teobaldo I de Navarra |
| Thjazi | Þjazi |
| Thjálfi | Thjálfi |
| Tholin | Tolinas |
| Thollar | Tolar |
| Thom Yorke | Thom Yorke |
| Thomas | Tomás |
| Thomas a Kempis | Tomás de Kempis |
| Thomas Alva Edison | Thomas Alva Edison |
| Thomas Anders | Thomas Anders |
| Thomas Augustine Arne | Thomas Augustine Arne |
| Thomas Babington Macaulay | Thomas Macaulay |
| Thomas Bayes | Thomas Bayes |
| Thomas Beaufort | Tomás Beaufort |
| Thomas Becket | Tomás Becket |
| Thomas Beecham | Thomas Beecham |
| Thomas Bernhard | Thomas Bernhard |
| Thomas Brown | Thomas Browne |
| Thomas Browne | Thomas Browne |
| Thomas Burke | Tom Burke |
| Thomas Béraud | Thomas Bérard |
| Thomas Carlyle | Thomas Carlyle |
| Thomas Cavendish | Thomas Cavendish |
| Thomas Chatterton | Thomas Chatterton |
| Thomas Cochrane de Dundonald | Thomas Cochrane |
| Thomas Cranmer | Thomas Cranmer |
| Thomas Crean | Thomas Crean |
| Thomas Crown | The Thomas Crown Affair |
| Thomas d'Aquin | Tomás de Aquino |
| Thomas de Brotherton | Tomás de Brotherton |
| Thomas de Lancastre | Tomás de Clarence |
| Thomas de Quincey | Thomas de Quincey |
| Thomas de Villeneuve | Tomás de Villanueva |
| Thomas de Woodstock | Tomás de Woodstock |
| Thomas d’Aquin | Tomás de Aquino |
| Thomas Edison | Thomas Alva Edison |
| Thomas Edward Lawrence | Thomas Edward Lawrence |
| Thomas Friedman | Thomas Friedman |
| Thomas Gainsborough | Thomas Gainsborough |
| Thomas Girtin | Thomas Girtin |
| Thomas Graham | Thomas Graham |
| Thomas Gray | Thomas Gray |
| Thomas Hardy | Thomas Hardy |
| Thomas Harris | Thomas Harris |
| Thomas Henry Huxley | Thomas Henry Huxley |
| Thomas Hitzlsperger | Thomas Hitzlsperger |
| Thomas Hobbes | Thomas Hobbes |
| Thomas Horsfield | Thomas Horsfield |
| Thomas Hunt Morgan | Thomas Hunt Morgan |
| Thomas Häßler | Thomas Häßler |
| Thomas Ier de Savoie | Tomás I de Saboya |
| Thomas Jefferson | Thomas Jefferson |
| Thomas Johann Seebeck | Thomas Johann Seebeck |
| Thomas Jonathan Jackson | Thomas Jonathan Jackson |
| Thomas Klestil | Thomás Klestil |
| Thomas Kretschmann | Thomas Kretschmann |
| Thomas l'incrédule | Tomás el incrédulo |
| Thomas Lawrence | Thomas Lawrence |
| Thomas Lowry | Thomas Lowry |
| Thomas Malory | Thomas Malory |
| Thomas Malthus | Thomas Malthus |
| Thomas Mann | Thomas Mann |
| Thomas Merton | Thomas Merton |
| Thomas Moore | Thomas Moore |
| Thomas More | Tomás Moro |
| Thomas Muster | Thomas Muster |
| Thomas Münzer | Thomas Müntzer |
| Thomas Nagel | Thomas Nagel |
| Thomas Paine | Thomas Paine |
| Thomas Paléologue | Tomás Paleólogo |
| Thomas Pynchon | Thomas Pynchon |
| Thomas Ravelli | Thomas Ravelli |
| Thomas Reiter | Thomas Reiter |
| Thomas Sackville de Dorset | Thomas Sackville |
| Thomas Samuel Kuhn | Thomas Kuhn |
| Thomas Sankara | Thomas Sankara |
| Thomas Simpson | Thomas Simpson |
| Thomas Stamford Raffles | Thomas Stamford Raffles |
| Thomas Stearns Eliot | T. S. Eliot |
| Thomas Sørensen | Thomas Sørensen |
| Thomas Tallis | Thomas Tallis |
| Thomas Vermaelen | Thomas Vermaelen |
| Thomas Vinterberg | Dane Vinterberg |
| Thomas Wolsey | Thomas Wolsey |
| Thomas Young | Thomas Young |
| Thomen Stauch | Thomas Stauch |
| Thomisidae | Thomisidae |
| Thompson | Subfusil Thompson |
| Thomson | Thomson SA |
| thon | tuna |
| Thoosa | Toosa |
| Thor | Thor |
| Thor Heyerdahl | Thor Heyerdahl |
| Thor Vilhjálmsson | Þór Vilhjálmsson |
| Thora | Torá |
| Thora Birch | Thora Birch |
| thoracique | torácico |
| thorax | pecho |
| Thorgal | Thorgal |
| Thorin II Écu-de-Chêne | Thorin Escudo de Roble |
| Thorismond | Turismundo |
| thorium | torio |
| thorn | thorn |
| Thorstein Veblen | Thorstein Veblen |
| thorybisme | toribismo |
| Thot | Tot |
| Thoune | Thun |
| Thourioi | Turios |
| Thousand Oaks | Thousand Oaks |
| Thoutmôsis | Tutmosis |
| Thoutmôsis Ier | Tutmosis I |
| Thoutmôsis II | Tutmosis II |
| Thoutmôsis III | Tutmosis III |
| Thoutmôsis IV | Tutmosis IV |
| THQ | THQ |
| thrace | tracio |
| Thraces | Tracios |
| Thranduil | Thranduil |
| Thrasamund | Trasamundo |
| Thrash metal | Thrash metal |
| Thrasivoulos Zaimis | Thrasivulos Zaimis |
| Thrasybule | Trasíbulo |
| Thrasymaque | Trasímaco |
| Thraupinae | Thraupidae |
| Thrawn | Thrawn |
| Three Cheers for Sweet Revenge | Three Cheers For Sweet Revenge |
| Three Days Grace | Three Days Grace |
| Three Mile Island | Three Mile Island |
| Three-point Shootout | Concurso de triples de la NBA |
| Threskiornis | Threskiornis |
| Threskiornis melanocephalus | Threskiornis melanocephalus |
| Threskiornis molucca | Threskiornis molucca |
| Threskiornis spinicollis | Threskiornis spinicollis |
| Threskiornithidae | Threskiornithidae |
| thrombocyte | plaqueta |
| thrombose | trombosis |
| thrombose coronarienne | trombosis coronaria |
| Thrombose veineuse profonde | Tromboflebitis superficial |
| Thromboxane | Tromboxano |
| thrombus | coágulo |
| Thrymr | Thrym |
| Thrymskvida | Thrymskvida |
| thréonine | treonina |
| Thrúd | Þrúð |
| Thubten Gyatso | Thubten Gyatso |
| Thucydide | Tucídides |
| Thug | Thuggee |
| Thujone | Tuyona |
| Thule | Thule |
| thulium | tulio |
