# SAR

SAR or Sar may refer to:

## Places

* Sar (river), Galicia, Spain
* Sar, Bahrain, a residential district
* Sar, Iran (disambiguation), several places in Iran
* Sar, Tibet, Tibet Autonomous Region of China
* Šar Mountains, in southeastern Europe
* Sark, a Channel Island, IIGA country code
* Special administrative regions of China
* Syrian Arab Republic, sometimes abbreviated as SAR, the official name of Syria

## Business and finance

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

## Computing

* sar (Unix) (system activity report), a Unix/Linux performance report utility
* Segmentation and reassembly, in data networks
* Service Archive or SAR, a file format related to JAR
* Shift Arithmetically Right (SAR), an x86 instruction
* Storage Aspect Ratio of a digital image

## Law enforcement

* Search and rescue
* Nationwide Suspicious Activity Reporting Initiative, US
* Suspicious activity report, by a financial institution to an authority

## Science
### Medicine, psychology, and biology

* SAR supergroup (Stramenopiles, Alveolates, and Rhizarians supergroup), a clade within the eukaryotes
* Scaffold/matrix attachment region or scaffold-attachment region, DNA sequences
* Sexual Attitude Reassessment
* Specific absorption rate, of RF energy by the human body
* Structure–activity relationship, of biological effect of a molecule
* Systemic acquired resistance, of a plant to a pathogen

### Science and technology

* Sar (astronomy), 9 years 5 days, a period separating eclipses
* SAR 21, Singapore Assault Rifle – 21st century
* SAR-87 (Sterling SAR-87), 1980s military assault rifle
* IPCC Second Assessment Report, 1995 report on climate change
* Semi-automatic rifle
* Sodium adsorption ratio, 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

## Organizations

* SAR Academy, yeshiva in Riverdale, New York, US
** SAR High School, the high school of SAR Academy
* SAR Records, an American record label
* Scholars at Risk, a network supporting academic freedom
* School for Advanced Research in anthropology and related fields, Santa Fe, New Mexico, US
* Sigma Alpha Rho, a high school fraternity, Philadelphia, Pennsylvania, US
* Society for Artistic Research
* Sons of the American Revolution, US organisation

### Railways

* Saudi Arabia Railways, national railway company of Saudi Arabia
* Savage Alberta Railway, Alberta, Canada, reporting mark
* South African Railways, now part of Transnet Freight Rail
* South Australian Railways, 1854–1978

### 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, an uthra (angel) in Mandaeism
* Sar language, a Bongo–Bagirmi language of southern Chad
* Sample of Anonymised Records, based on the UK population census
* Special administrative region, territorial entity designation
* Student Aid Report, sent to applicants of U.S. federal financial aid for college
* Subject access request, in data protection law
* Super Animal Royale, a 2021 video game developed by Pixile Studios