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

This disambiguation page lists articles associated with the title SCA.
If an internal link led you here, you may wish to change the link to point directly to the intended article.