| Abbreviation | Definition |
|---|---|
| BLPA | Burt Lake Preservation Association |
| BLSA | Black Law Student Association |
| BLSA | Boston Latin School Association |
| BLTA | Bahamas Lawn Tennis Association |
| BLTA | Bermuda Lawn Tennis Association |
| BLTA | Biggest Little Tennis Association |
| BLTA | Brazilian Luxury Travel Association |
| BMA | Baptist Missionary Association |
| BMA | Barbados Manufacturing Association |
| BMA | Bible Memory Association |
| BMA | Black Management Association |
| BMA | British Medical Association's |
| BMAA | Baptist Missionary Association of America |
| BMAA | Bucks Mont Astronomical Association |
| BMAC | British Motorcycle Association of Colorado |
| BMDA | Bahamas Motor Dealers Association |
| BMDA | Belize Medical and Dental Association |
| BMDA | Bermuda Medical Doctors Association |
| BMDA | Building Material Dealers Association |
| BMFA | British Model Flying Association |