| Acronym | Definition |
|---|
| MGM | Metro-Goldwyn Mayer (movie studio) |
| MGM | Milligram |
| MGM | Mystery Guitar Man |
| MGM | Media Gateway Manager |
| MGM | Mostly Good Memory |
| MGM | Maternal Grandmother |
| MGM | Mardi Gras Madness (various organizations) |
| MGM | Midtown Global Market (Midtown Global Market) |
| MGM | Mercury Grand Marquis (automobile model) |
| MGM | Ministerstwo Gospodarki Morskiej (Polish: Ministry of Maritime Economy) |
| MGM | Male Genital Mutilation (usually in reference to circumcision) |
| MGM | Microrganismi Geneticamente Modificati (Italian: Genetically Modified Organisms) |
| MGM | Molecular Genetics & Microbiology |
| MGM | Member-Get-a-Member |
| MGM | Mechanics of Granular Materials |
| MGM | Means Great Movies (Metro-Goldwyn Mayer motto) |
| MGM | Molecular Graphics and Modeling (Kansas University) |
| MGM | Monopulse Ground Map (US Air Force) |
| MGM | Master in Government Management |
| MGM | Mentally Gifted Minors |
| MGM | Mailgram |
| MGM | Montgomery, AL, USA - Dannelly Field (Airport Code) |
| MGM | Mission Manager |
| MGM | Memory Grant Manager |
| MGM | Managerial Gross Margin |
| MGM | Mentally Gifted Men |
| MGM | Master Group Multiplexer |
| MGM | Materiel Group Manager |
| MGM | Modified Gradient Method |
| MGM | Medical Group Management Journal |
| MGM | Mar Gregorios Memorial (schools in India) |
| MGM | Modern Gift Market |
| MGM | Militant Grammarians of Massachusetts (Infinite Jest) |
| MGM | Medium-Grade Metamorphism (geology) |
| MGM | Minimal Generator Matrix/Matrices |
| MGM | Multi-Guard Mediator |