# Sis

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**Sis** or **SIS** may refer to:

## People

- [Michael Sis](/source/Michael_Sis) (born 1960), American Catholic bishop

## Places

- [Sis (ancient city)](/source/Sis_(ancient_city)), historical town in modern-day Turkey, served as the capital of the Armenian Kingdom of Cilicia.
- [Kozan, Adana](/source/Kozan,_Adana), the current name of the Armenian town of Sis in Cilicia, Turkey
- [Sis, Armenia](/source/Sis,_Armenia), a village in Armenia
- [Sis, Azerbaijan](/source/Sis,_Azerbaijan), a village in the Republic of Azerbaijan
- [Sis, Iran](/source/Sis,_Iran), a city in East Azerbaijan, Iran
- [Sis, Kurdistan](/source/Sis,_Kurdistan), a village in Kurdistan, Iran
- [Sis Rural District (Shabestar County)](/source/Sis_Rural_District_(Shabestar_County)), East Azerbaijan province, Iran
- [Sis Rural District (Dehgolan County)](/source/Sis_Rural_District_(Dehgolan_County)), Kurdistan province, Iran
- [Mountains of Sis](/source/Mountains_of_Sis), a range of the Pre-Pyrenees

## Intelligence

- [Schengen Information System](/source/Schengen_Information_System), in Europe
- [Security Information Service](/source/Security_Information_Service), Czech domestic information intelligence agency known as *BIS*
- [Secret Intelligence Service](/source/Secret_Intelligence_Service), UK intelligence agency, also known as *MI6*
- [Australian Secret Intelligence Service](/source/Australian_Secret_Intelligence_Service), Australia’s national intelligence service
- [Canadian Security Intelligence Service](/source/Canadian_Security_Intelligence_Service), Canada's national intelligence service
- [New Zealand Security Intelligence Service](/source/New_Zealand_Security_Intelligence_Service), an intelligence agency of the New Zealand government
- [Finnish Security Intelligence Service](/source/Finnish_Security_Intelligence_Service), the intelligence agency of Finland in charge of national security
- [Slovenská informačná služba](/source/Slovensk%C3%A1_informa%C4%8Dn%C3%A1_slu%C5%BEba), Slovak Intelligence Service
- [Special Intelligence Service](/source/Special_Intelligence_Service), a secret FBI intelligence agency operating in South America during World War II
- [Signals Intelligence Service](/source/Signals_Intelligence_Service), the former United States Army codebreaking division
- [Information and Security Service of the Republic of Moldova](/source/Information_and_Security_Service_of_the_Republic_of_Moldova), the principal intelligence agency of Moldova.
- [Serviço de Informações de Segurança](/source/Servi%C3%A7o_de_Informa%C3%A7%C3%B5es_de_Seguran%C3%A7a), a Portuguese intelligence agency
- [Survey of India Service](/source/Survey_of_India_Service), formerly the Great Trigonometric Survey
- [Special Investigation Section](/source/LAPD_Special_Investigation_Section), a [tactical](/source/Police_tactical_unit) [detective](/source/Detective) and [surveillance](/source/Surveillance) unit of the [Los Angeles Police Department](/source/Los_Angeles_Police_Department)
- Signals Intelligence Section, involved with the [Magic](/source/Magic_(cryptography)) project during World War II

## Businesses

- [Silicon Integrated Systems](/source/Silicon_Integrated_Systems), an electronics manufacturing company
- [Sports Information Services](/source/Sports_Information_Services), a news service company
- [Siemens IT Solutions and Services](/source/Siemens_IT_Solutions_and_Services), a service provider which is part of Siemens AG headquarters
- [SIS (motorbikes)](/source/SIS_(motorbikes)), a Portuguese manufacturer of motorcycles

## Schools

### China

- [Shekou International School](/source/Shekou_International_School), in Shekou
- [Singapore International School](/source/Singapore_International_School), in Hong Kong
- [South Island School](/source/South_Island_School), in Hong Kong

### United States

- [School of International Service](/source/School_of_International_Service), [American University](/source/American_University), [Washington, D.C.](/source/Washington,_D.C.)
- [Syracuse University School of Information Studies](/source/Syracuse_University_School_of_Information_Studies)
- [University of Pittsburgh School of Information Sciences](/source/University_of_Pittsburgh_School_of_Information_Sciences)

### Other schools

- [SIS Swiss International School](/source/SIS_Swiss_International_School), a group of 15 private day schools in Switzerland, Germany and Brazil
- [McGill University School of Information Studies](/source/McGill_University_School_of_Information_Studies), Canada
- [School of International Studies of the Dresden University of Technology](/source/School_of_International_Studies_of_the_Dresden_University_of_Technology), Germany
- [Singapore International School Mumbai](/source/Singapore_International_School_Mumbai), India
- [Surabaya International School](/source/Surabaya_International_School), Indonesia
- [Seoul International School](/source/Seoul_International_School), South Korea
- [Stockholm International School](/source/Stockholm_International_School), Sweden
- [Sharjah Indian School](/source/Sharjah_Indian_School), United Arab Emirates

## Other organizations

- [Sisters in Islam](/source/Sisters_in_Islam), an organization based in Malaysia
- [Swedish Institute for Standards](/source/Swedish_Institute_for_Standards)
- Specialized Information Services, a division of the [United States National Library of Medicine](/source/United_States_National_Library_of_Medicine)
- [State Information Service](/source/State_Information_Service), official media and public relations apparatus of the Egyptian state

## Information processing

- [SIS (file format)](/source/SIS_(file_format)), Symbian OS filename extension
- [Short integer solution problem](/source/Short_integer_solution_problem), a problem in lattice-based cryptography
- [Single-instance storage](/source/Single-instance_storage), information-storage space-saving mechanism
- [Strategic information system](/source/Strategic_information_system), a part of corporate strategy
- [Student information system](/source/Student_information_system), a software application for education establishments to manage student data
- [Sequential Importance Sampling](/source/Sequential_Importance_Sampling)

## Biological sciences

- [Small intestinal submucosa](/source/Small_intestinal_submucosa), transplantation tissue
- [Second-impact syndrome](/source/Second-impact_syndrome), synergy in concussions
- [Sex in space](/source/Sex_in_space), an area of biological research

## Healthcare

- [Saline infusion sonography](/source/Saline_infusion_sonography), a test used to diagnose uterine polyps
- [Shoulder impingement syndrome](/source/Shoulder_impingement_syndrome), tendinitis of the shoulder

## Technologies

- [Selective inverted sink](/source/Selective_inverted_sink), frost protection device
- [Safety instrumented system](/source/Safety_instrumented_system) or safety instrumentation system
- [Space Infrastructure Servicing](/source/Space_Infrastructure_Servicing), a robotic spacecraft for in-space refueling of communication satellites
- [Sequential infiltration synthesis](/source/Sequential_infiltration_synthesis), a method to infiltrate polymers to create inorganic-organic hybrid materials

## Other uses

- [SIS (group)](/source/SIS_(group)), South Korean girl group founded 2017
- [*SiS* (TV series)](/source/SiS_(talk_show)), a morning talk show
- *SIS*, a 2008 [television film](/source/Television_film) directed by [John Herzfeld](/source/John_Herzfeld)
- [Supervised injection site](/source/Supervised_injection_site)
- [MS *Sis*](/source/MS_Sis), car ferry
- [Singular isothermal sphere profile](/source/Singular_isothermal_sphere_profile), a simple density distribution used in astronomy
- [Silicon monosulfide](/source/Silicon_monosulfide), chemical formula SiS
- *[SIS (Soft Is Strong)](/source/SIS_(Soft_Is_Strong))*, 2024 EP by Katseye

## See also

- [Sister](/source/Sister), a female sibling
- [Sissy](/source/Sissy), a pejorative term for a boy or man who violates or does not meet the traditional male gender role
- [Shimano Index Shifting](/source/Shimano_Index_Shifting), bicycle transmission design
- [Single-image stereogram](/source/Single-image_stereogram)
- [Superconductor-insulator-superconductor tunnel junction](/source/Superconductor-insulator-superconductor_tunnel_junction)
- [Swedish National Board of Institutional Care](/source/Swedish_National_Board_of_Institutional_Care), abbreviated *SiS*
- SIS 18, an accelerator at the [GSI Helmholtz Centre for Heavy Ion Research](/source/GSI_Helmholtz_Centre_for_Heavy_Ion_Research)
- [Special Investigations Section (disambiguation)](/source/Special_Investigations_Section_(disambiguation))
- [Cis (disambiguation)](/source/Cis_(disambiguation))
- [Ciss (disambiguation)](/source/Ciss_(disambiguation))

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Adapted from the Wikipedia article [Sis](https://en.wikipedia.org/wiki/Sis) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Sis?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.