| Acronym | Definition |
|---|
| MMI | Motorcycle Mechanics Institute |
| MMI | Multi Media Interface |
| MMI | Man-Machine Interface |
| MMI | Money Management International |
| MMI | Maximum Medical Improvement |
| MMI | Modified Mercalli Intensity |
| MMI | Madison Media Institute (Madison, Wisconsin) |
| MMI | Marion Military Institute |
| MMI | Mutual Mortgage Insurance |
| MMI | Money Market Instruments |
| MMI | Maximum Mutual Information (decoder) |
| MMI | Me Myself and I |
| MMI | Michigan Molecular Institute |
| MMI | Mutuelle du Ministère de l'Intérieur (French: Mutual Ministry of the Interior) |
| MMI | Medical Mission International |
| MMI | Multifamily Market Index (National Association of Home Builders) |
| MMI | multiple mini-interview |
| MMI | Mother May I (band) |
| MMI | Materiel Management Institute |
| MMI | Medicus Mundi International |
| MMI | Medical Management Institute (Georgia) |
| MMI | Major Mental Illness |
| MMI | Mallinckrodt Medical Inc |
| MMI | Modem Management Interface (Cisco) |
| MMI | Ministry of Mines and Industry |
| MMI | Muslim Mosque, Incorporated |
| MMI | Mobile Math Initiative |
| MMI | Mind/Machine Interface (gaming) |
| MMI | Multihazard Mapping Initiative (US FEMA initiative) |
| MMI | Miss May I (band) |
| MMI | Mixed-Mode Interface |
| MMI | Municipal Mutual Insurance Limited (London, England, UK) |
| MMI | Major and Medium Irrigation (India) |
| MMI | Minuteman I |
| MMI | Missionaries of Mary Immaculate |
| MMI | Mixed Mode Interpretation |
| MMI | Master Member Index |
| MMI | Masters of Management of Innovation (University of Toronto degree) |
| MMI | Management & Maintenance Inspection |
| MMI | Maintenance Managed Item (Royal Australian Air Force) |
| MMI | Multimedia Marketing and Internet (Jamaica) |
| MMI | Maximal Merging Interval |
| MMI | Multi-MAJCOM Inspection |
| MMI | Micro-Mechanical Inertial |
| MMI | Midwest Montessori Institute |
| MMI | Mono-Methyl Indium |
| MMI | Manpower Management Information |
| MMI | Maintenance Manual Intermediate Levels (TMINS) |
| MMI | Milinda Moragoda Institute (Colombo, Sri Lanka) |
| MMI | Morey Metal Industries, Inc (Trenton, NJ) |
| MMI | Medical Microbiology & Immunology (various schools) |
| MMI | Museum of the Moving Image (Astoria, NY) |
| MMI | Messe Munchen International (Germany) |
| MMI | Marina Militare Italiana (Italian: Italian Navy) |