| Acronym | Definition |
|---|
| BHA | British Humanist Association |
| BHA | Bibliography of the History of Art (J. Paul Getty Trust and CNRS) |
| BHA | British Horseracing Authority (UK) |
| BHA | Brownsville Historical Association (Texas) |
| BHA | Beta Hydroxy Acid |
| BHA | Butylated Hydroxyanisole |
| BHA | British Hospitality Association |
| BHA | Bottom Hole Assembly (oil industry) |
| BHA | Branksome Hall Asia (South Korea) |
| BHA | Berkeley Housing Authority (California) |
| BHA | Berwickshire Housing Association (UK) |
| BHA | Butt-Head Astronomer (early PowerMac 7100/66 Codename) |
| BHA | Beacon Hill Associates, Inc. (various locations) |
| BHA | Brooke Hospital for Animals (various locations) |
| BHA | Bankcard Holders of America |
| BHA | Bacillus Halodurans |
| BHA | Belize Hotel Association |
| BHA | Bryan Herta Autosport (racing team) |
| BHA | British Hyperbaric Association |
| BHA | Boston Harbor Association (est. 1972; Olympia, WA) |
| BHA | Bureau of Hearings and Appeals |
| BHA | Black Hole Association (gaming clan) |
| BHA | Bachelor of Humanities and Arts |
| BHA | British Hypnotherapy Association |
| BHA | Bahia de Caraquez, Ecuador (Airport code) |
| BHA | Brethren Housing Association (Harrisburg, PA) |
| BHA | Berkshire Health Authority (UK) |
| BHA | Bloomington Housing Authority |
| BHA | Brussels Hotels Association (Belgium) |
| BHA | Brighton and Hove Albion FC |
| BHA | Behavioral Health Associates, Inc. (various locations) |
| BHA | Board of Healing Arts |
| BHA | Boost Haute Attraction (French: High Boost Attraction; nutritional supplement) |
| BHA | Bradenton Housing Authority |
| BHA | Bachelor in Health Administration |
| BHA | Blazer Horse Association |
| BHA | Bomb Hit Assessment |
| BHA | Burrowes Huggins Architects (Canada) |
| BHA | Bachelor of Hotel Administration |
| BHA | Busy Hour Attempts (telecommunications) |
| BHA | Bruno Huissoud Automobile (French automobile repair shop) |
| BHA | Best Holding Activity (US DoD DLA) |
| BHA | Battle Hit Assessment |
| BHA | Bandwidth Handling Algorithm |
| BHA | Back Haul Allowance (WalMart Vendor Relations) |
| BHA | Burlington Hotel Association |