| Truschino | Kaliber |
| Truss rod | Själ |
| Trusted computing | Trusted Computing |
| Trusted Computing Group | Trusted Computing Group |
| Truth or Consequences | Truth or Consequences |
| Trygve Haavelmo | Trygve Haavelmo |
| Trygve Lie | Trygve Lie |
| Trysil | Trysils kommun |
| Træna | Træna kommun |
| Trèves | Trier |
| Tré Cool | Tré Cool |
| Trélex | Trélex |
| Trøgstad | Trøgstad kommun |
| Trøndelag | Trøndelag |
| TS | TS |
| Tschappina | Tschappina |
| Tschiertschen | Tschiertschen |
| Tschierv | Tschierv |
| Tschlin | Tschlin |
| Tschugg | Tschugg |
| Tsodilo | Klippmålningarna i Tsodilo |
| Tsubasa RESERVoir CHRoNiCLE | Tsubasa Chronicle |
| Tsunade | Tsunade |
| tsunami | flodvåg |
| Tsung-Dao Lee | Tsung-Dao Lee |
| Tsushima | Tsushima |
| Tsutomu Nihei | Tsutomu Nihei |
| tswana | setswana |
| TT | TT |
| tu | er |
| Tu BiShvat | Tu Bishvat |
| Tu chiamami Peter | The Life and Death of Peter Sellers |
| Tu quoque | Tu quoque-argument |
| tu stessa | själv |
| tu stesso | själv |
| tu-sai-chi | du-vet-vem |
| tua | din |
| Tuareg | Tuareger |
| Tuatha De Danann | Tuatha Dé Danann |
| Tuba | Tuba |
| tuba di Eustachio | örontrumpet |
| Tuba di Falloppio | Äggledare |
| tubare | kuttra |
| tubatura | ledning |
| Tubbataha Reef | Tubbataharevet |
| Tuber | Tryffel |
| tubercolosi | tuberkulos |
| tubercoloso | knölig |
| tubercolotico | tuberkulös |
| tubero | knöl |
| Tubi di Baigong | Baigong-rören |
| Tubinga | Tübingen |
| tubo | rör |
| Tubo a raggi catodici | Katodstrålerör |
| Tubo catodico | Katodstrålerör |
| tubo d'alimentazione | tillförselrör |
| tubo di mandata | tillförselrör |
| Tubo di Pitot | Prandtl-rör |
| Tubo di prolunga | Mellanring |
| tubo di scappamento | avgasrör |
