CSA may refer to:
Arts and media
- Canadian Screen Awards, annual awards given by the Academy of Canadian Cinema & Television
- Commission on Superhuman Activities, a fictional American government agency in Marvel Comics
- Crime Syndicate of America, DC Comics supervillains
- C.S.A.: The Confederate States of America, 2004 alternative history mockumentary
Law
- Combined statistical area, defined by the U.S. Office of Management and Budget
- Commission sharing agreement, in financial services
- Controlled Substances Act, in U.S. drug policy
- Credit Support Annex, a legal document regulating collateral for derivative transactions
Organizations
For-profit businesses
- CSA (database company) (formerly Cambridge Scientific Abstracts)
- Connectivity Standards Alliance (formerly Zigbee Alliance)
- Czech Airlines (ICAO designator CSA; abbreviated ČSA)
- Czech Sport Aircraft, an aircraft manufacturer
Government and military
- Canadian Securities Administrators, an organization of provincial and territorial securities regulators
- Canadian Space Agency, the national space agency of Canada
- Central Statistical Agency of Ethiopia
- Chief of Staff of the United States Army
- Civil Services Academy Lahore, Pakistan
- Compliance, Safety, and Accountability, an American commercial vehicle driver safety program; see Federal Motor Carrier Safety Administration
- Confederate States of America, a break-away republic in North America that lasted from 1861 to 1865
- Conseil supérieur de l'audiovisuel, a French broadcast content monitoring agency
- CSA Group (formerly the Canadian Standards Association, or CSA), a standards organization based in Canada
- Cyber Security Agency (Singapore)
Professional and trade organizations and unions
- Autonomous Trade Unions Centre (Central des Syndicats Autonomes du Bénin), a trade union centre in Benin
- California Society of Anesthesiologists
- CarSharing Association, a federation of carsharing organizations
- Casting Society of America, acronym commonly seen in the beginning and ending credits of media programs
- Central Student Association, University of Guelph, Ontario, Canada
- Civil Service Alliance, former British trade union federation
- Civil Service Association, Trinidad and Tobago
- Chemical Abstracts Service, a division of the American Chemical Society
- Cloud Security Alliance, which promotes IT security best practices
- College Student Alliance, a federation of student unions, based in Ontario, Canada
- Council of School Supervisors & Administrators, a New York City-based trade union
- Czech Society of Actuaries
Sport
- Canadian Soccer Association, the governing body of soccer in Canada
- Cano Sport Academy, a football club in Equatorial Guinea
- Centro Sportivo Alagoano, a football club, Maceió, Alagoas, Brazil
- Cricket South Africa
- Colored Speedway Association (1924-1936), former open-wheel racing series with African-American drivers
Other organizations
- Campaign for a Scottish Assembly, an association of Scottish political parties and civic groups established in 1989
- Canadian Snowbird Association, for travelling Canadians
- Celiac Sprue Association, a disease support group in the United States
- Certified Senders Alliance, a German whitelist for bulk email senders
- Child Support Agency (UK)
- Child Support Agency Australia
- City School of Architecture, an architecture school in Colombo, Sri Lanka
- Colegio San Agustin (disambiguation), several Catholic schools
- The Covenant, The Sword, and the Arm of the Lord, a 1970s-1980s white supremacist group in Arkansas, United States
Science, mathematics, and technology
Mathematics and computing
- Cartan subalgebra
- Central simple algebra
- Client SMTP Authorization
- Common Scrambling Algorithm
- Intel Communication Streaming Architecture
- Curved Surface Area
- Cross sectional area
Medicine and psychology
- Cationic steroid antibiotics, a family of compounds used to treat diseases
- Central sleep apnea, a sleep disorder
- CernySmith Assessment, a psychological stress questionnaire
- Clinical Skills Assessment exam
- Cockayne syndrome A or ERCC8, a gene whose mutation causes Cockayne syndrome
- Cognitive styles analysis, a computerized measure of cognitive styles
- Cyclosporin A, an immunosuppressant drug
Other uses in science, mathematics, and technology
- Camphorsulfonic acid
- Cardioid subwoofer array
- Common Support Aircraft
- Köppen classification of hot-summer Mediterranean climate, abbreviated Csa
- Chemical Safety Assessment
- Carry-save adder or Carry-skip adder, two different types of adders
- Chief Scientific Adviser (disambiguation)
- CSA keyboard layout, keyboard layout used in Canada
- Complex segregation analysis, a technique within genetic epidemiology
Other uses
- Chief Scout's Award (disambiguation)
- Child sexual abuse
- Community-supported agriculture, an alternative socioeconomic model of agriculture and food distribution
- Competition Stableford Adjustment, a golf scoring adjustment for handicapping purposes
- Corporate sociopolitical activism, a firm's public demonstration of support or opposition to a partisan sociopolitical issue
- Customer Service Advisor, a job title