STI

284 words updated Jun 18, 2026, 11:40 PM

STI, sti, or Sti may refer to:

Science and technology

Biology and psychology

Sexually transmitted infection, an infection transmitted through human sexual behavior
Signal transduction inhibitor, a class of pharmaceutical compounds
Soft tissue injury, the damage of muscles, ligaments and tendons throughout the body
Symptom targeted intervention, a treatment model for depression

Electronics and computing

Shallow trench isolation, an integrated circuit
STI (x86 instruction), a flag bit in the CPU relating to interrupts
Still Image Architecture, an image scanner API

Other uses in science and technology

Shimano Total Integration, a gearshift system for bicycles
Speech transmission index, a measure of transmission quality
Stationary target indication, a mode of radar operation
Subaru Impreza WRX STI, a motor vehicle
Verkehrsbetriebe STI, a bus operator in the Swiss canton of Bern

Businesses and organizations

Educational organizations

Sail Training International, an international maritime education charity
STI College, a private college in the Philippines

In science and technology

Semantic Technology Institute International, a research institute in Vienna, Austria
Sega Technical Institute, a video game developer
Subaru Tecnica International, the motorsports division of Subaru
Sony, Toshiba, and IBM, co-developers of the Cell microprocessor

Other businesses and organizations

Sangha Theravada Indonesia, one of various modern Buddhist organizations that still survive
Scottish Trade International (1991-2001), later Scottish Development International
Canadian airline Sontair, an ICAO code; see List of airline codes (S)

Other uses

Straits Times Index, a Singaporean stock market index
Stirlingshire, a historic county in Scotland
Cibao International Airport, an IATA code
Shun Tin station, an MTR code
Bulo Stieng language, an ISO 639-3 code

See also

ST1 (disambiguation)