| M.H.A. | Master of Hospital Administration 
| Others |
| MHA | MacDonald Harris & Associates
| Others |
| MHA | Mahdia, Guyana
| Others |
| MHA | Mail Handlers Association
| Others |
| MHA | Maine Horse Association
| Others |
| MHA | Making Home Affordable
| Others |
| MHA | Malaysian Hacker Associates
| Others |
| MHA | Malaysian Highway Authority
| Others |
| MHA | Malaysian Hotel Association
| Others |
| MHA | Mandan Hidatsa and Arikara
| Others |
| MHA | Mandan Hidatsa Arikara
| Others |
| MHA | Mandatory Housing Affordability
| Others |
| MHA | Marine Hotel Association
| Others |
| MHA | Maryland Hospital Association
| Others |
| MHA | Masonry Heater Association
| Others |
| MHA | Massachusetts Hospital Association
| Others |
| MHA | Mast Head Amplifier
| Others |
| MHA | Master High Availability
| Others |
| MHA | Master Hire Agreement
| Others |
| MHA | Master in Health Administration
| Others |
| MHA | Master of Health Administration
| Others |
| MHA | Master of Healthcare
| Others |
| MHA | Master of Healthcare Administration
| Others |
| MHA | Masters in Health Administration
| Others |
| MHA | Masters in Healthcare Administration
| Others |
| MHA | Masters of Health Administration
| Others |
| MHA | Material Handling Alert
| Others |
| MHA | McGraw Hill Aerospace
| Others |
| MHA | Melissa Haters Of America
| Others |
| MHA | Member of the House of Assembly
| Others |
| MHA | Men's Hall Association
| Others |
| MHA | Mental Health Academy
| Others |
| MHA | Mental Health Act
| Others |
| MHA | Mental Health Agency
| Others |
| MHA | Mental Health America
| Others |
| MHA | Mental Health Association
| Others |
| MHA | Mentoring Human Action
| Others |
| MHA | Michigan Health & Hospital Association
| Others |
| MHA | Microangiopathic Haemolytic Anaemia
| Others |
| MHA | Middle Hepatic Artery
| Others |
| MHA | Miku Hatsune Academia
| Others |
| MHA | MineHunter, Auxiliary
| Others |
| MHA | Minimum Holding Altitude
| Others |
| MHA | Mining History Association
| Others |
| MHA | Ministry of Home Affairs
| Others |
| MHA | Minnesota Homeschoolers' Alliance
| Others |
| MHA | Minnesota Homeschoolers` Alliance
| Others |
| MHA | Misc Hatred Antisemitism
| Others |
| MHA | Mississippi Hospital Association
| Others |
| MHA | Missouri Hospital Association
| Others |
| MHA | Modular High Architecture
| Others |
| MHA | Monmouth Housing Alliance
| Others |
| MHA | Montana Hospital Association
| Others |
| MHA | Montgomery Housing Authority
| Others |
| MHA | Mormon History Association
| Others |
| MHA | Motor Hill Assist
| Others |
| MHA | Motor Housing Assemblies
| Others |
| MHA | MS Hospital Assoc
| Others |
| MHA | Multi Head Attention
| Others |
| MHA | Multi Heuristic A
| Others |
| MHA | Multi Housing Association
| Others |
| MHA | Multiple Headset Adapter
| Others |
| MHA | Music Health Alliance
| Others |
| MHA | My Happy Apple
| Others |
| MHA | My Hero Academia
| Others |