ADA
Appearance
ADA may refer to:
Nonprofit organizations
- American Decency Association, advocacy group against pornography
- American Dental Association
- Americans for Democratic Action, liberal advocacy organization
- Australian Digital Alliance, copyright advocacy group
Government
Politics and law
- Airline Deregulation Act, a 1978 US law removing governmental control from commercial aviation
- Americans with Disabilities Act of 1990, U.S. law that prohibits discrimination on the basis of disability
- Antideficiency Act, U.S. law that prohibits the federal government from incurring debts not authorized by Congress
- Assistant District Attorney, US government attorney position
Military
- Aeronautical Development Agency, agency of India's Ministry of Defence
- Air Defense Artillery Branch (United States), a branch of the U.S. Army specializing in anti-aircraft weapons
- Armée de l'Air, the French Air Force
- Angehöriger der Armee or AdA, a member of the Swiss Armed Forces
Other
- Amazon Development Agency, a development agency in Brazil
- Association of Drainage Authorities, membership body for those involved in water level management in the United Kingdom
- Austrian Development Agency, a development aid agency
Businesses
- Aerolínea de Antioquia, a Colombian Airline
- Alternative Distribution Alliance, music distributor owned by Warner Music Group
Science and technology
- ADA collider, the first electron–positron collider
- Ada (programming language), a high-level computer programming language
- Adenosine deaminase, an enzyme involved in purine metabolism
- Advanced Distribution Automation, the extension of intelligent control over an electrical power grid
- Analog-to-digital converter/Digital-to-analog converter, seen as ADA or A/DA, conversion occurring in some electronic devices, often musical
- Apple Design Awards, an event at the Apple Worldwide Developers Conference
- Azodicarbonamide, a food additive also used in plastics production
Other uses
- Ada... A Way of Life, 2008 Bollywood musical by Tanvir Ahmed
- Adana Şakirpaşa Airport's IATA code
- Adangme language's ISO 639-2 code
- After the Development of Agriculture or A.D.A., a system of counting years, like Anno Domini and Anno Mundi
- Amigos dos Amigos, a drug cartel in Rio de Janeiro