| Acronym | Definition |
|---|
| MAI➣Mail (File Name Extension) |
| MAI➣Multilateral Agreement on Investment |
| MAI➣Ministerul Afacerilor Interne (Romanian: Ministry of the Interior; Moldova) |
| MAI➣Multiple Access Interference |
| MAI➣Modelo de Atención Integral (Spanish: Integral Attention Model; healthcare) |
| MAI➣Ministerul Administratiei si Internelor (Romanian: Ministry of the Interior) |
| MAI➣Maius (Latin: May) |
| MAI➣Martial Arts Instructor (various organizations) |
| MAI➣Montréal, Arts Interculturels (French: Montreal, Intercultural Arts; Canada) |
| MAI➣Mécanique et Automatismes Industriels (French: Mechanical and Industrial Automation) |
| MAI➣Mobile App Install (advertising) |
| MAI➣Ministério da Administração Interna (Portugal) |
| MAI➣Management Association of Illinois |
| MAI➣Mycobacterium Avium-Intracellulare |
| MAI➣Member, Appraisal Institute (real estate) |
| MAI➣Minority AIDS Initiative |
| MAI➣Moscow Aviation Institute |
| MAI➣Mean Annual Increment (forestry) |
| MAI➣Market for Alternative Investment (Second Board on Thailand's Exchange) |
| MAI➣Machine-Aided Indexing (computing) |
| MAI➣Monash Asia Institute |
| MAI➣Mcdonald Associates, Inc. (Illinois) |
| MAI➣McAfee Associates, Inc. (software; various locations) |
| MAI➣Meinl Airports International (Austria) |
| MAI➣Marine Asset Intelligence (Caterpillar, Inc.) |
| MAI➣Manufacturers' Association of Israel |
| MAI➣Merchant Administration Interface (various businesses) |
| MAI➣Media Action International |
| MAI➣Made As Instructed |
| MAI➣Middleware-Application Interaction |
| MAI➣Medical Action Industries Inc. (Brentwood, NY) |
| MAI➣Marriage Alive International (est. 1983) |
| MAI➣Median Area Income |
| MAI➣Market Access Intelligence (World Trade Organization) |
| MAI➣Multilevel Assessment Instrument |
| MAI➣Major Automated Information |
| MAI➣Migration and Asylum Initiative (now part of MARRI) |
| MAI➣Military Assistance Institute |
| MAI➣Measurement, Analysis and Improvement |
| MAI➣Myanmar Airway International |
| MAI➣Medication Assisted Intubation |
| MAI➣Management Assistance Incorporated |
| MAI➣Material Annex Item |
| MAI➣General Appraisal Member of the Appraisal Institute (formerly Member Appraisal Institute) |
| MAI➣Multiple Action Interaction |
| MAI➣Mesna, Adriamycin, and Ifosfamide (chemotherapy regimen) |
| MAI➣Medical Awareness Institute (San Diego, CA) |
| MAI➣Master Assessment Index |
| MAI➣Malaysian Association of Illinois (Southern Illinois University; Carbondale, IL) |