STT
STT is an abbreviation for:
- Cyril E. King Airport (IATA code), airport on the island of Saint Thomas, US Virgin Islands, USA
- Alpha Star Aviation (ICAO code), Saudi Arabian airline
- SCHEMA ST4 transformation , programming language
- Slobodna teritorija Trsta , Croatian name for the Free Territory of Trieste
- Special touring car trophy , GT and touring car racing series according to special national regulations
- Stabilimento Tecnico Triestino , the largest shipyards in Austria-Hungary
- Suara Timor Timur, a newspaper in East Timor, see Suara Timor Lorosa'e
- Suomen Tietotoimisto , Finnish News Agency, Helsinki
- Swiss Table Tennis , formerly the Swiss Table Tennis Association (STTV), the leading organization for Swiss table tennis, based in the House of Sports in Ittigen near Bern