STX

STX may be:

• An abbreviation for South Texas
• STX (sports manufacturer), a sports manufacturer based in Baltimore, Maryland
• STX Entertainment, a Los Angeles-based motion picture production and distribution company
• A common abbreviation for St Croix, U.S. Virgin Islands
• An abbreviation for St Cross College, Oxford
• A secure private telephone network used by London Stock Exchange affiliated firms and professionals
• Henry E. Rohlsen Airport (IATA code: STX), an airport on St. Croix, U.S. Virgin Islands
• Studentereksamen, an examination used in Denmark for the secondary school called gymnasium
• STX Corporation, System Technology Excellence, a Korea-based holding company
  • STX Offshore & Shipbuilding, a subsidiary of STX Corporation
  • STX Pan Ocean, a Korea-based shipping company, subsidiary of STX Corporation
• Streaming Transformations for XML, an XML transformation language
• Start of Text, a control code in the C0 control code set
• Seagate Technology, a manufacturer of hard disk drives for PC and many entertainment devices, based on its stock symbol STX
• Saxitoxin, a neurotoxin found in marine dinoflagellates
• Syntaxin, a membrane integrated Q-SNARE protein participating in exocytosis
• An acronym for Star Trek: Nemesis, the 10th film in the Star Trek film franchise (Star Trek X)
• Case STX Steiger
• Shiga toxin
• Filename extension of the PASTI raw disk image format for the Atari ST
• Structured Text, a plaintext markup language