STM

STM may refer to:

Technology

 * Scanning tunneling microscope, a non-optical microscope
 * Signature-tagged mutagenesis, a genetic technique to create random mutants
 * STMicroelectronics, a manufacturer of electronics and semiconductors
 * STM (Turkish company) (Savunma Teknolojileri Mühendislik ve Ticaret A.Ş.), a military technology company in Turkey
 * STM-1, Synchronous Transport Module, the basic rate of transmission of the SDH ITU-T fiber optic network
 * STM32, a family of 32-bit microcontroller integrated circuits by STMicroelectronics
 * Software transactional memory, a method of handling concurrency in multithreaded systems
 * Stepper motor, a type of electric motor
 * Canon autofocus lenses that use stepper motor technology which makes them especially quiet
 * .stm, a filename extension used by:
 * Web administration panel, of Belkin routers
 * Streaming Media File, in Microsoft Exchange Server
 * Scream Tracker, music tracker software

Transportation

 * Société de transport de Montréal, the public transport provider in Montreal, Quebec, Canada
 * Amtrak ticketing code for Stamford Transportation Center, a railway station in Stamford, Connecticut, US
 * National Rail for St Michaels railway station in Liverpool, England, UK
 * Sea traffic management, a set of systems and procedures to guide and monitor sea traffic in a manner similar to air traffic management
 * Space traffic management
 * Strategic Traffic Manager, a Bus Priority application designed to work as part of an intelligent transportation system
 * Santarém-Maestro Wilson Fonseca Airport, Santarém, Pará|Santarém, Brazil, by IATA airport code
 * St. Thomas Mount railway station, Chennai, Tamil Nadu, India, by station code
 * Sydney Tramway Museum, New South Wales, Australia

Publishing

 * International Association of Scientific, Technical, and Medical Publishers, an association of publishers
 * Science, technology, and medical publishing, a market segment of academic publishing
 * Science Translational Medicine, an American medical journal

Other uses

 * Sacrae Theologiae Magister, or Master of Sacred Theology, an academic degree
 * St Thomas College of Engineering and Technology, Kannur, Kerala , India
 * St. Thomas More College, a Catholic, undergraduate, liberal arts college located in Saskatoon, Saskatchewan, Canada
 * St. Thomas More Collegiate, a Catholic secondary school in Burnaby, British Columbia, Canada
 * Short-term memory, the capacity for holding a small amount of information for a short period of time
 * Small Tactical Munition, a weapon developed by Raytheon
 * Stabilisation Tracking Mechanism, the mirror instrument of the Stabilisation and Association Process (SAP) for Kosovo
 * ST"M, a Hebrew acronym meaning a scribe