| MEF | Madison Education Foundation 
| Others |
| MEF | MAIET Encrypted File
| Others |
| MEF | Major Economies Forum
| Others |
| MEF | Major Emitting Facility
| Others |
| MEF | Major Equipment Files
| Others |
| MEF | Malaysian Employer Federation
| Others |
| MEF | Malaysian Employers Federation
| Others |
| MEF | Managed Extensibility Framework
| Others |
| MEF | Marine Expeditionary Force
| Others |
| MEF | Mars Expeditionary Force
| Others |
| MEF | Mask Error Factor
| Others |
| MEF | Masking Evaluation Form
| Others |
| MEF | Masters of Economics & Finance
| Others |
| MEF | Matrixs Elite Few
| Others |
| MEF | Mauritius Employers Federation
| Others |
| MEF | Mauritius Employers' Federation
| Others |
| MEF | Maximal Expiratory Flow
| Others |
| MEF | Maximum Elevation Figure
| Others |
| MEF | Maximum Expansion Factor
| Others |
| MEF | McKinney Education Foundation
| Others |
| MEF | Media Education Foundation
| Others |
| MEF | Medical Emergencies in Flight
| Others |
| MEF | Medical Entrance Form
| Others |
| MEF | Mediterranean Expeditionary Force
| Others |
| MEF | Mei Foo, Hong Kong
| Others |
| MEF | Melfi, Chad
| Others |
| MEF | Memorial Education Fund
| Others |
| MEF | Message Exchange Format
| Others |
| MEF | Metro Ethernet Forum
| Others |
| MEF | Metro Ethernet Framework
| Others |
| MEF | Microfinance Enhancement Facility
| Others |
| MEF | Microsoft Envision Forum
| Others |
| MEF | Midtown Educational Foundation
| Others |
| MEF | Minimum Essential Force
| Others |
| MEF | Ministerial Education Fund
| Others |
| MEF | Mobile Ecosystem Forum
| Others |
| MEF | Mobile Entertainment Forum
| Others |
| MEF | Modernized e File
| Others |
| MEF | Modified Energy Factor
| Others |
| MEF | Moorestown Education Foundation
| Others |
| MEF | Moreland Educational Foundation
| Others |
| MEF | Most Expressive Feature
| Others |
| MEF | Mouse Embryonic Fibroblast
| Others |
| MEF | Mouse Embryonic Fibroblasts
| Others |
| MEF | Museo Enzo Ferrari
| Others |