Look up SIS or sis in Wiktionary, the free dictionary.

Sis or SIS may refer to:

• Michael Sis (born 1960), American Catholic bishop

• Sis (ancient city), historical town in modern-day Turkey, served as the capital of the Armenian Kingdom of Cilicia.
• Kozan, Adana, the current name of the Armenian town of Sis in Cilicia, Turkey
• Sis, Armenia, a village in Armenia
• Sis, Azerbaijan, a village in the Republic of Azerbaijan
• Sis, Iran, a city in East Azerbaijan, Iran
• Sis, Kurdistan, a village in Kurdistan, Iran
• Sis Rural District (Shabestar County), East Azerbaijan province, Iran
• Sis Rural District (Dehgolan County), Kurdistan province, Iran
• Mountains of Sis, a range of the Pre-Pyrenees

• Schengen Information System, in Europe
• Security Information Service, Czech domestic information intelligence agency known as BIS
• Secret Intelligence Service, UK intelligence agency, also known as MI6
• Australian Secret Intelligence Service, Australia’s national intelligence service
• Canadian Security Intelligence Service, Canada's national intelligence service
• New Zealand Security Intelligence Service, an intelligence agency of the New Zealand government
• Finnish Security Intelligence Service, the intelligence agency of Finland in charge of national security
• Slovenská informačná služba, Slovak Intelligence Service
• Special Intelligence Service, a secret FBI intelligence agency operating in South America during World War II
• Signals Intelligence Service, the former United States Army codebreaking division
• Information and Security Service of the Republic of Moldova, the principal intelligence agency of Moldova.
• Serviço de Informações de Segurança, a Portuguese intelligence agency
• Survey of India Service, formerly the Great Trigonometric Survey
• Special Investigation Section, a tactical detective and surveillance unit of the Los Angeles Police Department
• Signals Intelligence Section, involved with the Magic project during World War II

• Silicon Integrated Systems, an electronics manufacturing company
• Sports Information Services, a news service company
• Siemens IT Solutions and Services, a service provider which is part of Siemens AG headquarters
• SIS (motorbikes), a Portuguese manufacturer of motorcycles

• Shekou International School, in Shekou
• Singapore International School, in Hong Kong
• South Island School, in Hong Kong

• School of International Service, American University, Washington, D.C.
• Syracuse University School of Information Studies
• University of Pittsburgh School of Information Sciences

• SIS Swiss International School, a group of 15 private day schools in Switzerland, Germany and Brazil
• McGill University School of Information Studies, Canada
• School of International Studies of the Dresden University of Technology, Germany
• Singapore International School Mumbai, India
• Surabaya International School, Indonesia
• Seoul International School, South Korea
• Stockholm International School, Sweden
• Sharjah Indian School, United Arab Emirates

• Sisters in Islam, an organization based in Malaysia
• Swedish Institute for Standards
• Specialized Information Services, a division of the United States National Library of Medicine
• State Information Service, official media and public relations apparatus of the Egyptian state

• SIS (file format), Symbian OS filename extension
• Short integer solution problem, a problem in lattice-based cryptography
• Single-instance storage, information-storage space-saving mechanism
• Strategic information system, a part of corporate strategy
• Student information system, a software application for education establishments to manage student data
• Sequential Importance Sampling

• Small intestinal submucosa, transplantation tissue
• Second-impact syndrome, synergy in concussions
• Sex in space, an area of biological research

• Saline infusion sonography, a test used to diagnose uterine polyps
• Shoulder impingement syndrome, tendinitis of the shoulder

• Selective inverted sink, frost protection device
• Safety instrumented system or safety instrumentation system
• Space Infrastructure Servicing, a robotic spacecraft for in-space refueling of communication satellites
• Sequential infiltration synthesis, a method to infiltrate polymers to create inorganic-organic hybrid materials

• SIS (group), South Korean girl group founded 2017
• SiS (TV series), a morning talk show
• SIS, a 2008 television film directed by John Herzfeld
• Supervised injection site
• MS Sis, car ferry
• Singular isothermal sphere profile, a simple density distribution used in astronomy
• Silicon monosulfide, chemical formula SiS
• SIS (Soft Is Strong), 2024 EP by Katseye

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

This disambiguation page lists articles associated with the title Sis.
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