| Abbreviation | Definition |
|---|---|
| BHSA | Battlefield Horse Show Association |
| BHSA | Behavioral Health Services Association |
| BHSA | Bosnia Herzegovina Student Association |
| BHTA | BARBADOS HOTEL and Tourism Association |
| BHTA | Bingham Heritage trails Association |
| BHTA | Blue Hills Trail Association |
| BHTA | Border Hound Trailing Association |
| BHTA | British Healthcare Trade Association |
| BIA | Behavioral Intervention Association |
| BIA | Boating Industry Association |
| BIA | Business and Industry Association |
| BIAA | Bainbridge Island Ambulance Association |
| BIAA | Business in Asia Association |
| BIACC | Building Industry Association of Clark County |
| BIAD | Brain Injury Association of Delaware |
| BIAD | Brain Injury Association of Durham |
| BIAI | Brain Injury Association of Indiana |
| BIAK | Business Incubation Association of Kenya |
| BIALL | British Irish Association of Law Librarians |
| BIAM | Brain Injury Association of Maryland |