SMT may refer to:
Businesses and organisations
Based in Scotland
- Scottish Mortgage Investment Trust (LSE stock symbol: SMT)
- Scottish Motor Traction, a defunct bus operator
Based in the United States
- SMT (media company), a provider of live sports scoring
- Seismic Micro-Technology, a seismology software developer
- Society for Music Theory, a learned society
Rail transport
- St Margarets railway station (Hertfordshire), England
- Semarang Tawang railway station, Indonesia
- Shanghai maglev train, a Transrapid line in China
Science and technology
- Satisfiability modulo theories, in computer science and logic
- Simultaneous multithreading, in computing
- Statistical machine translation, in computational linguistics
- Sulfamethazine, an antibiotic drug
- Surface-mount technology, in electronics
- Heinrich Hertz Submillimeter Telescope, Arizona, United States
Other uses
- Senior management team, at schools in the UK
- Shin Megami Tensei, a Japanese multimedia franchise
- Shrimati (Smt.), an Indian feminine honorific
- Simte language, spoken in India (ISO 639-3 code)
- Social mirror theory