STM may refer to: Technology Scanning tunneling microscope, a non-optical microscope Signature-tagged mutagenesis, a genetic technique to create random mutants STMicroelectronics, a Dutch manufacturer of electronics and semiconductors STM (Turkish company) (), 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 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 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 See also STM200, a pseudonym for Takeshi Matsumoto, musician featured in the music video game Dance Dance Revolution 5thMix STEM fields, an education and publishing classification ST1M a.k.a. Billy Milligan, real name Nikita Legostev, a Russian rapper