Tat
- Armeno-Tats
- Die Tat
- ELP Communications
- Hermes Trismegistus
- Juhuri language
- Mountain Tats (Crimea)
- Poprad-Tatry Airport
- Research In Motion
- TAT (band)
- TAT (theatre)
- TAT European Airlines
- Takraw Association of Thailand
- Talbot railway station
- Tapas Acupressure Technique
- Targeted alpha-particle therapy
- Tat (HIV)
- Tat Ali
- Tat Bank
- Tat Tvam Asi
- Tat Wood
- Tat language (Caucasus)
- Tat people (Caucasus)
- Tat people (Iran)
- Tati (disambiguation)
- Tati language (Iran)
- Tattenham Corner railway station
- Tatting
- Thailand
- Thematic apperception test
- Three Affiliated Tribes
- Thrombin–antithrombin complex
- Tiffani Amber Thiessen
- Total air temperature
- Transatlantic telephone cable
- Transcontinental Air Transport
- Trinidad and Tobago
- Tropine acyltransferase
- Truckers Against Trafficking
- Turnaround time
- Twin-arginine translocation pathway
- Tyrosine
- Tyrosine aminotransferase
- Tát