BHA
- Area code 242
- Bahamas
- Berkshire Hathaway Assurance
- Beta hydroxy acid
- Bharia language
- Bibliography of the History of Art
- Binhai railway station
- Boston Housing Authority
- Bottom hole assembly
- Brighter Horizons Academy
- British Homeopathic Association
- British Horseracing Authority
- British Hospitality Association
- British Humanist Association
- Buddha Air
- Bureau for Humanitarian Assistance
- Bush Heritage Australia
- Bute House Agreement
- Butylated hydroxyanisole
- Los Perales Airport
- Power Macintosh 7100