MHA may refer to:
Organizations Malaysian Highway Authority, a government agency under the Malaysian Ministry of Works Malta Handball Association, the governing body of handball in Malta Manitoba Hockey Association, an early Canadian ice hockey league Member of the House of Assembly, a legislative assembly member in parts of Australia and Canada Mandan, Hidatsa, and Arikara Nation, a Northern Plains Native American tribe Ministry of home affairs, a government department in some countries Mormon History Association, a nonprofit organization promoting research and publication Methodist Homes for the Aged, cares for older people and is part of MHA Care Group
Science and technology
Mast Head Amplifier, an amplifier (LNA) mounted as close as practical to the antenna May–Hegglin anomaly, a genetic disorder affecting the blood platelets Microangiopathic hemolytic anemia, a type of anemia, more commonly abbreviated MAHA Maximum holding airspeed, aviation airspeed for holding patterns Minimum holding altitude, an aviation term, see holding
Other uses Master of Health Administration, a degree awarded by many American, European and Australian universities Mental Health Act, stock short title used for legislation relating to mental health law Mueller–Hinton agar, an agar of beef infusion, peptone, and starch used primarily for antibiotic susceptibility testing My Hero Academia, a Japanese manga and anime series, usually abbreviated to HeroAca