SIL, Sil and sil may refer to:

Organizations

* Servis Industries Limited, Pakistan * Smithsonian Institution Libraries * SIL International, formerly Summer Institute of Linguistics * Apex Silver Mines (former American Stock Exchange ticker symbol) * Societas Internationalis Limnologiae, now International Society of Limnology * Society for Individual Liberty * Scooters India Limited

Science and technology

* Solid immersion lens for microscope * Standard Interchange Language, for information exchange between software * Software-in-the-Loop, in software testing; see Association for Standardisation of Automation and Measuring Systems * STIL or SIL, a human gene * Surge impedance loading of electrical transmission lines * Squamous intraepithelial lesion * Safety Integrity Level of a safety function * Speech Interference Level, an acoustical parameter * SIL Open Font License

Fiction

* Sil (Doctor Who), a villain in the TV series * Sil, a character in the film ''

Species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

'' * Silvio Dante, a character in ''The Sopranos''

People

* Narasingha Sil (born 1937), historian * Sil Campusano (born 1965), a former baseball player * Sil Austin (1929–2001), American jazz saxophonist * Sil, member of the Dutch rap-metal band Urban Dance Squad * Silvy De Bie or Sil (born 1981), Belgian singer * Sil, project name of Dutch house musician Olav Basoski (born 1968)

Places

* Sil (river), Galicia, Spain * Sile (river), Italy, also called Sil * Sil (village), a small village on the northwestern part of Soledar, Ukraine.

Transport

* South Island line, Hong Kong

Other uses

* Sierra Leone, UNDP country code * Tumulung Sisaala (ISO 639-3 language code), a language * Silence-Lotto (UCI code), a bicycle racing team * SIL code, a 3-letter language code used by SIL International * sister-in-law