BHA may refer to:

Businesses and organisations Berkshire Hathaway Assurance, an American company Backcountry Hunters & Anglers, Montana, U.S. Boston Housing Authority, an American public agency Brighter Horizons Academy, an Islamic college in Garland, Texas, U.S. Brighton & Hove Albion F.C., an English association football club British Homeopathic Association British Horseracing Authority, a regulatory body British Hospitality Association, an industry association British Humanist Association (now Humanists UK) Buddha Air, a Nepalese airline, ICAO code BHA Bush Heritage Australia, a conservation non-profit

Science and technology Beta hydroxy acid, a type of organic compound Bottom hole assembly, a component of a drilling rig Butylated hydroxyanisole, a food additive BHA (for "Butt-Head Astronomer"), a code-name for the Power Macintosh 7100 computer

Other uses Bahamas (UNDP country code BHA) Bibliography of the History of Art, an electronic database by Getty Research Institute Los Perales Airport, Bahía de Caráquez, Ecuador (IATA code: BHA) Area code 242 for The Bahamas (North American dialling code:BHA) Bharia language (ISO 939-3 code: bha) Binhai railway station (China Railway Pinyin code:BHA) Bureau for Humanitarian Assistance of USAID Bute House Agreement, a former power-sharing agreement in the Scottish government