| Acronym | Definition |
|---|
| MEM | Memory |
| MEM | Memorial |
| MEM | Memorabilia |
| MEM | Master of Environmental Management (various universities) |
| MEM | Memorandum |
| MEM | Methods in Electron Microscopy |
| MEM | Ministerio de Energia y Minas (Guatemala) |
| MEM | Minimum Essential Medium (culture medium) |
| MEM | Minimal Essential Medium (culture medium) |
| MEM | Modified Eagle's Medium (culture media) |
| MEM | Master of Engineering Management |
| MEM | Missouri Employers Mutual (Columbia, MO) |
| MEM | Multilateral Evaluation Mechanism (drug trafficking) |
| MEM | Metro Ethernet Manager |
| MEM | Macro Editor Macro |
| MEM | Memory Manager |
| MEM | Micro-Electro-Mechanical |
| MEM | Maximum Entropy Method |
| MEM | Main Event Mafia (wrestling) |
| MEM | Major Economies Meeting |
| MEM | Ministry of Energy and Mines |
| MEM | Ministère de l'Énergie et des Mines (French: Ministry of Energy and Mines; various locations) |
| MEM | Medical Electronics Manufacturing (magazine) |
| MEM | Mobile Enterprise Management (software) |
| MEM | Middle Earth Mud (gaming) |
| MEM | Municipal Emergency Manager (Australia) |
| MEM | Manufacturing Enterprise Model |
| MEM | Major Emergency Management (offshore oil & gas industry) |
| MEM | Mining Environmental Management |
| MEM | Manufacturing Equipment Monitor |
| MEM | Manufacturing Engineering Memo (various companies) |
| MEM | Monocular Estimate Method (ophthalmology) |
| MEM | Mars Excursion Module |
| MEM | Module Exchange Mechanism (US NASA) |
| MEM | Memphis, TN, USA - Memphis International Airport (Airport Code) |
| MEM | Minimum Endogenous Mortality |
| MEM | Main Electronics Module |
| MEM | Marine Engineering Mechanic (Royal Navy UK) |
| MEM | Measurement Error Model |
| MEM | Mellors Elliot Motorsport |
| MEM | Modal Emission Model |
| MEM | Micro-Electro-Mechanics |
| MEM | Mechanical Electrical Maintenance |
| MEM | McAfee Enterprise Management |
| MEM | Multiple Engagement Model (military analysis model) |
| MEM | Model Exercise Model |
| MEM | Musica ExperiMente Ensemble (Contemporary Music Ensemble: Italy) |
| MEM | Matjaz Eric Maj (Mem Couture; fashion brand) |
| MEM | Marine Equity Model |
| MEM | Market Equipment Management |
| MEM | Model-Experiment-Model |
| MEM | Mature Equivalent of Milk |
| MEM | Multiple-Entry Memory (software framework) |
| MEM | Munition Effectiveness Manual |
| MEM | Move Entity Manager (USAF) |
| MEM | Maximum Energy Management |