SAR or Sar may refer to:

Places

Sar (river) The Sar is a river in Galicia, Spain. Rising near Santiago de Compostela, it flows through the A Maía valley for over before entering the Ulla River, near Padron. Pomponius Mela (d. 45 AD) mentions it (''Sars'') in ''De situ orbis libri III' ...

, Galicia, Spain *

Sar, Bahrain Sar or Saar () is a residential town in Bahrain, to the west of the capital, Manama. Education St. Christopher's School # University College of Bahrain Al Mahd Day Boarding School The Budaiya Pre-School # Saar Nursery # The Japanese School in B ...

, a residential district *

Sar, Iran (disambiguation) Sar ( fa, سار) may refer to: * Sar, East Azerbaijan * Sar, Isfahan * Sar, Kuhpayeh, Isfahan Province * Sar, Semnan * Sar, Sistan and Baluchestan {{geodis ...

, several places in Iran * Sar, Tibet, Tibet Autonomous Region of China *

Šar Mountains The Šar Mountains (Serbian and mk, Шар Планина, Šar Planina, colloquially also ) or Sharr Mountains ( sq, Malet e Sharrit), form a mountain range in the Balkans that extends from Kosovo and the northwest of North Macedonia to north ...

, in southeastern Europe * Syrian Arab Republic, sometimes abbreviated as SAR

Business and finance

* Parabolic SAR (stop and reverse), a method of technical stock analysis * Saudi riyal, currency code SAR * Stock appreciation right, an employee reward

Computing

* Segmentation and reassembly, in data networks * Service Archive or SAR, a file format related to

JAR A jar is a rigid, cylindrical or slightly conical container, typically made of glass, ceramic, or plastic, with a wide mouth or opening that can be closed with a lid, screw cap, lug cap, cork stopper, roll-on cap, crimp-on cap, press-on c ...

* Shift Arithmetically Right (SAR), an x86 instruction * Storage Aspect Ratio of a digital image *

sar (Unix) System Activity Report (sar) is a Unix System V-derived system monitor command used to report on various system loads, including CPU activity, memory/paging, interrupts, device load, network and swap space utilization. Sar uses /proc filesyst ...

, or system activity report, a Unix/Linux performance report utility

Law enforcement

* Search and rescue *

Nationwide Suspicious Activity Reporting Initiative The Nationwide Suspicious Activity Reporting (SAR) Initiative (NSI) is a program of the United States Government used to collect and share reports of suspicious activity by people in the United States. The Nationwide SAR Initiative (NSI) builds ...

, US * Suspicious activity report, by a financial institution to an authority

Science

Medicine, psychology, and biology

Scaffold/matrix attachment region The term S/MAR (scaffold/matrix attachment region), otherwise called SAR (scaffold-attachment region), or MAR (matrix-associated region), are sequences in the DNA of eukaryotic chromosomes where the nuclear matrix attaches. As architectural DNA c ...

or scaffold-attachment region, DNA sequences * Sexual Attitude Reassessment *

Specific absorption rate Specific absorption rate (SAR) is a measure of the rate at which energy is absorbed per unit mass by a human body when exposed to a radio frequency (RF) electromagnetic field. It can also refer to absorption of other forms of energy by tissue, inc ...

, of RF energy by the human body *

SAR supergroup The SAR supergroup, also just SAR or Harosa, is a clade that includes stramenopiles ( heterokonts), alveolates, and Rhizaria. The name is an acronym derived from the first letters of each of these clades; it has been alternatively spelled "RAS". ...

, a clade within eukaryotes * Structure–activity relationship, of biological effect of a molecule *

Systemic acquired resistance Systemic acquired resistance (SAR) is a "whole-plant" resistance response that occurs following an earlier localized exposure to a pathogen. SAR is analogous to the innate immune system found in animals, and although there are many shared aspects ...

, of a plant to a pathogen

Science and technology

Sar (astronomy) The saros () is a period of exactly 223 synodic months, approximately 6585.3211 days, or 18 years, 10, 11, or 12 days (depending on the number of leap years), and 8 hours, that can be used to predict eclipses of the Sun and Moon. One saros period ...

, 9 years 5 days, a period separating eclipses *

SAR 21 The SAR 21 ("Singapore Assault Rifle - 21st Century") is a bullpup assault rifle designed and manufactured in Singapore, chambered for the 5.56x45mm cartridge. First revealed and subsequently adopted by the Singapore Armed Forces (SAF) as its ...

, Singapore Assault Rifle 21st century * SAR-87 (

Sterling SAR-87 The Sterling SAR-87 is a military assault rifle of the late 20th century. The Sterling Assault Rifle (SAR), which included elements from Sterling's earlier Light Automatic Rifle (LAR) design, was jointly engineered by Sterling Armaments Company ...

), 1980s military assault rifle *

Sodium adsorption ratio The Sodium adsorption ratio (SAR) is an irrigation water quality parameter used in the management of sodium-affected soils. It is an indicator of the suitability of water for use in agricultural irrigation, as determined from the concentrations of t ...

, an irrigation water quality parameter * Spent Acid Regeneration of sulfuric acid * Submarine Advanced Reactor program of USS ''Triton'' * Successive Approximation Register of a successive-approximation ADC * Synthetic-aperture radar, imaging radar *

IPCC Second Assessment Report The Second Assessment Report (SAR) of the Intergovernmental Panel on Climate Change (IPCC), published in 1995, is an assessment of the then available scientific and socio-economic information on climate change. The report was split into four par ...

Semi-automatic rifle A semi-automatic rifle is an autoloading rifle that fires a single cartridge with each pull of the trigger, and uses part of the fired cartridge's energy to eject the case and load another cartridge into the chamber. For comparison, a bolt-a ...

Organizations

* SAR Academy, yeshiva in Riverdale, New York, US ** SAR High School, the high school of SAR Academy *

SAR Records SAR Records was a record company founded by soul music legend Sam Cooke in 1961. The meaning of "SAR" has been disputed; it has been listed as "Sam & Alex Records" (J.W. Alexander was Cooke's business, song-writing associate, and friend) and also a ...

, an American record label *

Scholars at Risk Scholars at Risk (SAR) is a U.S.-based international network of academic institutions organized to support and defend the principles of academic freedom and to defend the human rights of scholars around the world. Network membership includes over ...

, a network supporting academic freedom *

School for Advanced Research The School for Advanced Research (SAR), until 2007 known as the School of American Research and founded in 1907 as the School for American Archaeology (SAA), is an advanced research center located in Santa Fe, New Mexico, USA. Since 1967, the s ...

in anthropology and related fields, Santa Fe, New Mexico, US *

Sigma Alpha Rho Sigma Alpha Rho () is the oldest continuously run, independent Jewish high school fraternity, founded on November 18, 1917, by 11 young men in West Philadelphia, Pennsylvania. This Jewish High School Fraternity has international, regional and lo ...

, a high school fraternity, Philadelphia, Pennsylvania, US *

Society for Artistic Research The Society for Artistic Research (SAR) is an international nonprofit, artistic and scientific society devoted to developing, linking and disseminating internationally artistic research as a specific practice of producing knowledge. SAR also aims t ...

Sons of the American Revolution The National Society of the Sons of the American Revolution (SAR or NSSAR) is an American congressionally chartered organization, founded in 1889 and headquartered in Louisville, Kentucky. A non-profit corporation, it has described its purpose ...

, US organisation

Railways

* Saudi Railway Company *

Savage Alberta Railway Savage Alberta Railway , known as Alberta RailNet between 1999 and 2005, was a Canadian short line railway that operated in the province of Alberta until late 2006. History Alberta RailNet was formed in June 1999 to purchase former Canadian Nat ...

, Alberta, Canada, reporting mark *

South Australian Railways South Australian Railways (SAR) was the statutory corporation through which the Government of South Australia built and operated railways in South Australia from 1854 until March 1978, when its non-urban railways were incorporated into Aust ...

, 1854–1978 *

South African Railways Transnet Freight Rail is a South African rail transport company, formerly known as Spoornet. It was part of the South African Railways and Harbours Administration, a state-controlled organisation that employed hundreds of thousands of people ...

, now part of Transnet Freight Rail

Military

* Sandfontein Artillery Regiment, an artillery regiment of the South African Army * State Artillery Regiment, an artillery regiment of the South African Army

Other uses

Sar (surname) Sar is a surname. Notable people with the surname include: * Abdoulaye Sar *Edwin van der Sar (born 1970), Dutch association football goalkeeper *Franco Sar (1933–2018), Italian Olympic decathlete *Maya Sar (born 1981), Bosnian singer-songwriter ...

Sar language Sar or Sara, also known as Madjingay and Sara Madjingay is a Bongo–Bagirmi language of southern Chad, and the lingua franca of regional capital of Sarh. Phonology The consonants are as follows. Vowels and nasal vowels are as follows: ...

, a Bongo–Bagirmi language of southern Chad * Sample of Anonymised Records, based on the UK population census * Search and rescue * Special administrative region, territorial entity designation *

Student Aid Report The Free Application for Federal Student Aid (FAFSA) is a form completed by current and prospective college students (undergraduate and Postgraduate education, graduate) in the United States to determine their eligibility for Student financial aid ...

, sent to applicants of U.S. federal financial aid for college *

Subject access request The right of access, also referred to as right to access and (data) subject access, is one of the most fundamental rights in data protection laws around the world. For instance, the United States, Singapore, Brazil, and countries in Europe have all ...

, in data protection law