English abbreviations from thanks to thihic
- THANKS (To Honor Acknowledge And Note Kindness and Service)
- THAW (The Heat And Warmth Fund)
- THB (Thai baht (ISO 4217 currency code))
- THC (Tchien Airport)
- THCVB (Terre Haute Convention and Visitors Bureau)
- THD (Tho Xuan Airport)
- THDG (True heading)
- THE (Teresina Airport)
- THEA (Thread of Hope for Economic Advancement)
- THEED (Transmission High-Energy Electron Diffraction)
- THEGENTRY (The High-End Group of Earth's New Technologies Research Yield)
- THEI (Through His Eyes International)
- THEL (Tactical High Energy Laser ACTD)
- THEMIS ((instrumentation) Thermal Emission Imaging System, a camera on the Mars Odyssey spacecraft)
- THEO (Teens Helping Each Other)
- Theol. (Theologia ("Theology"))
- THERE (Teens Having Experiences of Random Energy)
- THERM (Thermometer Log)
- THES (Times Higher Education Supplement)
- THF (Tempelhof International Airport (closed 2008))
- THFC (Tottenham Hotspur Football Club)
- THG (Tetrahydrogestrinone)
- THH (The Horse's Hoof)
- THI (Tichitt Airport)
- Thia, Theolia. (Theologia ("Theology"))
- THIHIC (Texas Heart Institute Heart Information Center)