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