| Acronym | Definition |
|---|
| BASA➣Banco da Amazônia SA (Amazônia Bank, Brazil) |
| BASA➣Black and Asian Studies Association (est. 1991) |
| BASA➣Bilateral Aviation Safety Agreement (FAA) |
| BASA➣Banking Association South Africa |
| BASA➣Buckeye Association of School Administrators (Ohio) |
| BASA➣British Adhesives and Sealants Association |
| BASA➣British Automatic Sprinkler Association (England) |
| BASA➣Bay Area Soaring Associates (Sunnyvale, California) |
| BASA➣Bermuda Amateur Swimming Association |
| BASA➣Business & Arts South Africa |
| BASA➣Bulgarian Alarm Systems Association |
| BASA➣Business Administration Students' Association (University of Winnipeg, Winnipeg, Manitoba, Canada) |
| BASA➣British Association of Seed Analysts |
| BASA➣Business Aviation School of Aeronautics |
| BASA➣Batch Install Stand-Alone System (Sprint) |