# SCA

SCA may refer to:

## Biology and health

* Sickle cell disease, also known as sickle cell anaemia
* Spinocerebellar ataxia, a neurological condition
* Statistical coupling analysis, a method to identify covarying pairs of amino acids in protein multiple sequence alignments
* Sudden cardiac arrest, a condition in which the heart suddenly stops beating, leading to sudden cardiac death
* Superior cerebellar artery, a major blood supplier to the cerebellum

## Commercial entities

* Sebastian Conran Associates, a British product and brand development consultancy
* Sony Corporation of America, holding company for Sony's American companies
* Southern Cross Austereo, an Australian media company
* Supercheap Auto, an Australian automotive parts and accessories retailer
* SCA (company) (Svenska Cellulosa Aktiebolaget), a Swedish hygiene products and paper manufacturer

## Computing

* SCA (computer virus), an Amiga virus referencing the Swiss Cracking Association
* Service Component Architecture
* Side-channel attack, in cryptography
* Single Connector Attachment or Single Connection Attach, an 80-pin SCSI storage interface
* Software Communications Architecture, in Software-Defined Radio (SDR)
* Static code analysis
* Strong customer authentication
* Software Composition Analysis

## Locations

* Seoul Capital Area, Korea
* Singapore Changi Airport
* South and Central America, a country grouping
* Southern Control Area, a Canadian airspace designation
* Soviet Central Asia
* Space Centre Australia

## Organizations

* Bureau of South and Central Asian Affairs, in the U.S. Department of State
* Sabah Chinese Association
* Sarawak Chinese Association
* Schuylkill Canal Association, an organization that maintains a section of historical canal in Pennsylvania
* Scottish Canoe Association, the national governing body for paddlesports in Scotland
* Screen Composers of America, an organization co-founded by Jeff Alexander
* Secular Coalition for America
* Sexual Compulsives Anonymous
* Société en commandite par actions, a type of corporation in France
* Society for Creative Anachronism, an international living history group
** SCA armoured combat, a combat sport developed by the above organization
* Society for Cultural Anthropology, a professional association for cultural anthropologists
* Student Catholic Action, a religious student organization in the Philippines
* Student Conservation Association, a non-profit conservation service organization in the United States
* Suez Canal Authority, a state-owned authority which owns and maintains the Suez Canal
* Supreme Council of Antiquities, the Egyptian antiquities service
* Supreme Court of Albania, the court of last resort in the Republic of Albania
* Swedish Committee for Afghanistan
* Swiss Cricket Association
* Sydney Catchment Authority
* Sydney College of the Arts

## Other

* McNamara–O'Hara Service Contract Act
* Senate Constitutional Amendment, the formal name for a type of California ballot proposition
* Shuttle Carrier Aircraft, two Boeing 747 aircraft modified to transport the Space Shuttle
* Small craft advisory
* Solar collector array, a type of solar thermal collector
* Spectrum continuation analysis
* Stored Communications Act, Title II of the US Electronic Communications Privacy Act of 1986
* Subsidiary communications authority, the Federal Communications Commission's name for subcarrier channels transmitted on a broadcast FM station
* Sustainable competitive advantage, a business advantage that is preserved over long term
* USC School of Cinematic Arts, University of Southern California, United States