STX

STX may refer to:

Businesses

 * Seagate Technology, a hard drive manufacturer with stock symbol STX
 * STX (sports manufacturer), a sports manufacturer based in Baltimore, Maryland
 * STX Corporation (System Technology Excellence), a Korea-based holding company
 * STX Entertainment, a Los Angeles-based motion picture production and distribution company
 * STX Europe, a ship builder

Chemistry

 * Saxitoxin, a neurotoxin found in marine dinoflagellates
 * Shiga toxin
 * Syntaxin, a membrane integrated Q-SNARE protein participating in exocytosis

Computing

 * A secure private telephone network used by London Stock Exchange affiliated firms and professionals
 * PASTI raw disk image format for the Atari ST
 * Start of Text, a control code in the C0 control code set
 * Socket Technology EXtended, the Mini-STX computer form factor
 * Streaming Transformations for XML, an XML transformation language
 * Structured text, a plaintext markup language

Places

 * Henry E. Rohlsen Airport (IATA code: STX), an airport on St. Croix, U.S. Virgin Islands
 * South Texas
 * St Croix, U.S. Virgin Islands
 * St Cross College, Oxford

Other uses

 * Case STX Steiger, a tractorline built by Case IH
 * Star Trek: Nemesis, the 10th film in the Star Trek film franchise (Star Trek X)
 * Almen studentereksamen, an examination used in Denmark for the secondary school called gymnasium