| Thymus praecox | Kruiptijm |
| Thyolo District | Thyolo |
| Thyone | Thyone |
| thyratron | thyratron |
| Thyreophora | Thyreophora |
| thyristor | thyristor |
| Thyrnau | Thyrnau |
| thyroid | schildklier |
| Thyroid cancer | Schildklierkanker |
| thyroid gland | schildklier |
| Thyropteridae | Hechtschijfvleermuizen |
| Thysanura | Franjestaarten |
| ThyssenKrupp | ThyssenKrupp |
| Théo Lefèvre | Théo Lefèvre |
| Théo van Rysselberghe | Théo van Rysselberghe |
| Théoden | Théoden |
| Théodore Chassériau | Théodore Chassériau |
| Théodore Géricault | Théodore Géricault |
| Théodore Rousseau | Théodore Rousseau |
| Théophile de Donder | Théophile De Donder |
| Théophile Gautier | Théophile Gautier |
| Thérouanne | Terwaan |
| Thérèse de Lisieux | Theresia van Lisieux |
| Théâtre Optique | Optisch Theater |
| Thônex | Thônex |
| Thörigen | Thörigen |
| Thörl | Thörl |
| Thümmlitzwalde | Thümmlitzwalde |
| Thüngen | Thüngen |
| Thüngersheim | Thüngersheim |
| Thürkow | Thürkow |
| Thürnen | Thürnen |
| Thābit ibn Qurra | Thabit ibn Qurra |
| ti | si |
| Ti plasmid | Ti-plasmide |
| TI-BASIC | TI-BASIC |
| Tia Carrere | Tia Carrere |
| Tia Dalma | Tia Dalma |
| Tia Hellebaut | Tia Hellebaut |
| Tia Maria | Tia Maria |
| Tiago Calvano | Tiago Calvano |
| Tiago Mendes | Tiago |
| Tiago Monteiro | Tiago Monteiro |
| Tiamat | Tiamat |
| Tian Shan | Tiensjan |
| Tian Tan Buddha | Tian Tan Boeddha |
| Tiananmen Square | Plein van de Hemelse Vrede |
| Tiananmen Square protests | Tiannanmen-protest |
| Tianjin | Tianjin |
| tiara | tiara |
| Tibe | Controlestock |
| Tiber | Tiber |
| Tiber Island | Tibereiland |
| Tiberias | Tiberias |
| Tiberinus | Tiberinus Silvius |
| Tiberinus Silvius | Tiberinus Silvius |
| Tiberios III | Tiberios II |
| Tiberium | Tiberium |
| Tiberius | Tiberius |
| Tiberius Claudius Cogidubnus | Tiberius Claudius Cogidubnus |
| Tiberius Claudius Narcissus | Narcissus |
| Tiberius Coruncanius | Tiberius Coruncanius |
| Tiberius Gemellus | Tiberius Iulius Caesar Nero Gemellus |
| Tiberius Gracchus | Tiberius Sempronius Gracchus III |
| Tiberius Gracchus Major | Tiberius Sempronius Gracchus II |
| Tiberius I | Tiberius Claudius Nero |
| Tiberius II Constantine | Tiberios I Constantijn |
| Tiberius Julius Alexander | Tiberius Julius Alexander |
| Tiberius Nero | Tiberius Claudius Nero |
| Tiberius Sempronius Gracchus | Tiberius Sempronius Gracchus III |
| Tiberius Sempronius Longus | Tiberius Sempronius Longus |
| Tibesti Mountains | Tibesti |
| Tibet | Tibet |
| Tibet Autonomous Region | Tibetaanse Autonome Regio |
