MEF

MEF may stand for:

Military

• Marine Expeditionary Force, one of the major subdivisions of the United States Marine Corps; see 1st Marine Expeditionary Force, 2nd Marine Expeditionary Force, 3rd Marine Expeditionary Force
• Malaita Eagle Force, a militant organization originating in the island of Malaita in the Solomon Islands
• Mediterranean Expeditionary Force
• Mesopotamian Expeditionary Force during the First World War

Science/technology

• Managed Extensibility Framework
• Myocyte Enhancer Factor (2)
• Maximum Elevation Figure (flying)
• Medial eye fields
• Mouse Embryonic Fibroblast
• Museo Paleontológico Egidio Feruglio collection code
• Metro Ethernet Forum
• Modified Energy Factor (Energy Star Rating Value, US Department of Energy (DOE))
• Modernized e-File (MeF), an electronic system for filing U.S. income taxes
• Maximal expiratory flow - synonymous to forced expiratory flow in spirometry

Other

• Major Economies Forum on Energy and Climate Change
• Method Man, American rapper and member of the Wu-tang clan
• Middle East Forum, an American think tank
• Ministerio de Economía y Finanzas, the Uruguayan ministry of economics and finance
• Ministry of Environment and Forests
• MEF International School Istanbul
• Media Education Foundation