| ADA | A Darling Actress 
| Others |
| ADA | A Detection Algorithm
| Others |
| ADA | A Dumb Answer
| Others |
| ADA | Abarth Driving Academy
| Others |
| ADA | Active Directory Schema Attributes
| Others |
| ADA | Active Distance Assist
| Others |
| ADA | Active Driving Assist
| Others |
| ADA | Ada Developers Academy
| Others |
| ADA | Ada language source code file
| Others |
| ADA | Adana Airport
| Others |
| ADA | Adana Armenia
| Others |
| ADA | Adangme
| Others |
| ADA | Adaptive Driving Access
| Others |
| ADA | Adaptive Driving Alliance
| Others |
| ADA | Adaptive Driving Association
| Others |
| ADA | Adenosine Deaminase A
| Others |
| ADA | Administration Agent
| Others |
| ADA | Adobe Download Assistant
| Others |
| ADA | Advance Deposit Account
| Others |
| ADA | Advanced Data Access
| Others |
| ADA | Advanced Data Analytics
| Others |
| ADA | Advanced Delivery Alert
| Others |
| ADA | Advanced Distribution Automation
| Others |
| ADA | Advanced Drive Assist
| Others |
| ADA | Advanced Driver Assistance
| Others |
| ADA | Advanced Drivers Association
| Others |
| ADA | Advanced Driving Academy
| Others |
| ADA | ADvisory Airspace
| Others |
| ADA | Aerial Damage Assessment
| Others |
| ADA | Aeronautical Development Agency
| Military, Air Force, Defence, Weapon, Manufacturing, Research Center, Transport, Air Transport |
| ADA | After Date of Award of contract
| Others |
| ADA | Aftermarket Distributors Alliance
| Others |
| ADA | Ageing Dodering Alzhimic
| Others |
| ADA | Air Defense Area
| Others |
| ADA | Air Defense Artillery
| Others |
| ADA | Airtight Drywall Approach
| Others |
| ADA | Alamo Dressage Association
| Others |
| ADA | Alcohol Dependence/Abuse
| Others |
| ADA | Alcoholism and Drug Abuse Division
| Others |
| ADA | Allowance for Doubtful Accounts
| Others |
| ADA | Alternatives to Domestic Aggression
| Others |
| ADA | American Dairy Association
| Others |
| ADA | American Dental Association
| Others |
| ADA | American Diabetes
| Others |
| ADA | American Diabetes Association
| Others |
| ADA | American Diabetes Association's
| Others |
| ADA | American Dietetic Association
| Others |
| ADA | American Disability Act
| Others |
| ADA | American Dollars for Attorneys
| Others |
| ADA | Americans for Democratic Action
| Others |
| ADA | Americans with Disabilities Act
| Others |
| ADA | Americans with Disabilities Act of 1990
| Others |
| ADA | Amg Driving Academy
| Others |
| ADA | Analog Digital Analog
| Others |
| ADA | Analog Digital Associates
| Others |
| ADA | Analytics Data Advertising
| Others |
| ADA | Anello Di Accumulazione
| Others |
| AdA | Angehorige der Armee
| Others |
| ADA | Annemarie's Dance Academy
| Others |
| ADA | Anno Domini Aquarii
| Others |
| ADA | Another Darn Attorney
| Others |
| ADA | Another Day Again
| Others |
| ADA | Another Dumb Acknowledgement
| Others |
| ADA | Anterior Descending Artery
| Others |
| ADA | Anti Deer Association
| Others |
| ADA | Anti Deficiency Act
| Others |
| ADA | Anti-Diuretic Activity
| Others |
| ADA | Antideficiency Act
| Others |
| ADA | Applauding Deaf Artists
| Others |
| ADA | Application Developers Alliance
| Others |
| ADA | Apprentice Dark Angel
| Others |
| ADA | Approach and Departure Angle
| Others |
| ADA | Arbeitsgemeinschaft Deutscher Aufbereitungs
| Others |
| ADA | Architects and Designers Association
| Others |
| ADA | Architects Drinking Alcohol
| Others |
| ADA | Arriyadh Development Authority
| Others |
| ADA | Assistant District Attorney
| Others |
| ADA | Associate Dean Academic
| Others |
| ADA | Athletes Demand Action
| Others |
| ADA | Athletic Dealers of America
| Others |
| ADA | Attorneys Dreams Answered
| Others |
| ADA | Audio Design Associates
| Others |
| ADA | Audio Distribution Amplifier
| Others |
| ADA | Australian Dental Association
| Others |
| ADA | Auto Damage Appraiser
| Others |
| ADA | Auto Dell'Anno
| Others |
| ADA | Autoliv Development Ab
| Others |
| ADA | Automated Degree Audit
| Others |
| ADA | Automated Design of Algorithms
| Others |
| ADA | Automatic Data Acquisition
| Others |
| ADA | Automatic Data Capture
| Others |
| ADA | Automotive Design Awards
| Others |
| ADA | Automotive Distributors Association
| Others |
| ADA | Average Daily Attendance
| Others |
| ADA | Aviation Data and Analysis System
| Others |
| ADA | Azodicarbonamide
| Others |
| ADA | Developers Academy
| Others |
| ADA | International IEEE Conference on ADA Applications and Environments
| Others |
| Ada | Language after Augusta Ada Byron, computer pioneer
| Others |
| ADA | Programming language named after Lady Ada Augusta Byron
| Others |