| BD&A | Before, During, and After 
| Others |
| BD&A | Big Data and Analytics
| Others |
| BDA | Bachelor of Design in Architecture
| Others |
| BDA | Backdrive Actuator
| Others |
| BDA | Backup Drive Amplifier
| Others |
| BDA | Balloon Dilation Angioplasty
| Others |
| BDA | Banca Dati Auto
| Others |
| BDA | Banco de Desenvolvimento de Angola
| Others |
| BDA | Bangalore Development Authority
| Organization |
| BDA | Bank Development Accoutant
| Others |
| BDA | Bank Draft Authorization
| Others |
| BDA | Basic Driving Authorisation
| Others |
| BDA | Battle Damage Assessment
| Others |
| BDA | Battle Dome Alliance
| Others |
| BDA | Beclomethosone Diproprionate Aerosol
| Others |
| BDA | Beer Drinkers of America
| Others |
| BDA | Before During After
| Others |
| BDA | Belt Driven A-Series
| Others |
| BDA | Belt Driven A-series engine
| Others |
| BDA | Beneficiary Designation Account
| Others |
| BDA | Bengaluru Development Authority
| Others |
| BDA | Bermuda Dental Association
| Others |
| BDA | Bermuda Island
| Others |
| BDA | Bermuda Tracking Station (Spaceflight Tracking and Data Network)
| Others |
| BDA | Bermuda, Atlantic Ocean, Bermuda
| Others |
| BDA | Bespoke Distribution Aviation
| Others |
| BDA | Best Death Animation
| Others |
| BDA | Bhopal Development Authority
| Others |
| BDA | Bhubaneswar Development Authority
| Others |
| BDA | Bi Directional Amplifier
| Others |
| BDA | Big Data & Analytics
| Others |
| BDA | Big Data Analytics
| Others |
| BDA | Big Data Appliance
| Others |
| BDA | Big Data Architect
| Others |
| BDA | Bintulu Development Authority
| Others |
| BDA | Biological Distributed Algorithms
| Others |
| BDA | BIOS Data Area
| Others |
| BDA | Biosystems Data Analysis group, University of Amsterdam, the Netherlands
| Others |
| BDA | Biotinalated Dextran Amine
| Others |
| BDA | Biotinylated Dextran Amine
| Others |
| BDA | Blast Danger Area
| Others |
| BDA | Blu-ray Disc Association
| Others |
| BDA | Blue Dolphin Aquatics
| Others |
| BDA | Blue Dragon Alliance
| Others |
| BDA | Bluray Disc Association
| Others |
| BDA | Bomb Damage Assessment
| Military |
| BDA | Bond Dealers of America
| Others |
| BDA | Bone Dry Air
| Others |
| BDA | Borland Database
| Others |
| BDA | Boulder Digital Arts
| Others |
| BDA | Bowls Development Alliance
| Others |
| BDA | Brain Damaged Adult
| Others |
| BDA | Brainless Dumb Association
| Others |
| BDA | Bresenham Drawing Algorithm
| Others |
| BDA | Brigade Design Analysis
| Others |
| BDA | British Deaf Association
| Others |
| BDA | British Dental Association
| Others |
| BDA | British Diabetic Association
| Others |
| BDA | British Dietetic Association
| Others |
| BDA | British Drilling Association
| Others |
| BDA | British Dyslexia Association
| Others |
| BDA | Broadcast Design Association
| Others |
| BDA | Broadcast Designers Association
| Others |
| BDA | Broadcast Driver Architecture
| Others |
| BDA | Bruce Davis Associates
| Others |
| BDA | Budlong Dockert Armstrong
| Others |
| BDA | Bulgarian Drug Agency
| Others |
| BDA | Bund Deutscher Architekten
| Others |
| BDA | Bus Driver Authority
| Others |
| BDA | Bus Drivers Association
| Others |
| BDA | Business Development Allowance
| Others |
| BDA | Business Domain Architecture
| Others |