MEF may stand for:

Government

* Mission Essential Functions - critical operations of the US government in the face of unexpected disruption

Military

Malaita Eagle Force The Malaita Eagle Force was a militant organisation, originating in the island of Malaita, in the Solomon Islands. It was formed in the early 2000s and soon crossed over to Honiara, the capital of Solomon Islands. It was set up during 'The Ten ...

, a militant organization originating in the island of

Malaita Malaita is the primary island of Malaita Province in Solomon Islands. Malaita is the most populous island of the Solomon Islands, with a population of 161,832 as of 2021, or more than a third of the entire national population. It is also the se ...

in the

Solomon Islands Solomon Islands, also known simply as the Solomons,John Prados, ''Islands of Destiny'', Dutton Caliber, 2012, p,20 and passim is an island country consisting of six major islands and over 1000 smaller islands in Melanesia, part of Oceania, t ...

* Marine Expeditionary Force (MEF), one of the major deployable subdivisions of the United States Marine Corps; see

1st Marine Expeditionary Force The I Marine Expeditionary Force ("I" pronounced "One") is a Marine Air Ground Task Force (MAGTF) of the United States Marine Corps primarily composed of the 1st Marine Division, 3rd Marine Aircraft Wing, and 1st Marine Logistics Group. It i ...

, 2nd Marine Expeditionary Force,

3rd Marine Expeditionary Force III Marine Expeditionary Force (III MEF) is a formation of the Marine Air-Ground Task Force of the United States Marine Corps. It is forward-deployed and able to rapidly conduct operations across the spectrum from humanitarian assistance and d ...

Mediterranean Expeditionary Force The Mediterranean Expeditionary Force (MEF) was the part of the British Army during World War I that commanded all Allied forces at Gallipoli and Salonika. It was formed in March 1915, under the command of General Sir Ian Hamilton, at the begi ...

Mesopotamian Expeditionary Force The Mesopotamian campaign or Mesopotamian front () was a campaign in the Middle Eastern theatre of World War I fought between the British Empire, with troops from United Kingdom of Great Britain and Ireland, Britain, Australia and the vast major ...

during the

First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

Organizations

Mahratta Education Fund The Mahratta Education Fund (MEF) is a non-profit organization working for the spread of education to poor and deserving students of South Indian Marathi speaking community. The Fund was founded by a 21-year old lawyer E. Vinayaka Row during a ...

, Indian non-profit organisation * Major Economies Forum on Energy and Climate Change *

Media Education Foundation The Media Education Foundation is a nonprofit organization established in 1992 that produces and distributes documentary films about the impact of American mass media. Their films focus on topics such as gender, race and representation, health, cl ...

* MEF International School Istanbul *

Middle East Forum The Middle East Forum (MEF) is an American conservative 501(c)(3) think tank founded in 1990 by Daniel Pipes, who now serves as its chairman. Gregg Roman serves as director of the forum. MEF became an independent non-profit organization in 19 ...

, an American conservative think tank * Ministerio de Economía y Finanzas, the Peruvian ministry of economics and finance * Ministerio de Economía y Finanzas, the Uruguayan ministry of economics and finance *

Ministero dell’Economia e delle Finanze The Ministry of Economy and Finance (), also known by the acronym MEF, is a ministry of the Italian government. Its responsibilities include overseeing economic policy, public investments and spending. The Ministry's headquarters are located in R ...

, the Italian ministry of economics and finance *

Ministry of Environment and Forests The Ministry of Environment, Forest and Climate Change (MoEFCC) is an Government of India, Indian government Ministry (government department), ministry. The ministry Portfolio (government), portfolio is currently held by Bhupender Yadav, Union ...

, India

Science/technology

* Managed Extensibility Framework, a software plugin framework, written by Microsoft * Maximum Elevation Figure (flying) * Maximal expiratory flow, another name for

peak expiratory flow The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) and peak flow measurement, is a person's maximum speed of expiration, as measured with a peak flow meter, a small, hand-held device used to monitor a person's ability to ...

in spirometry *

Medial eye fields Medial eye fields are areas in the frontal lobe of the primate brain that play a role in visually guided eye movement. Most neuroscientists refer to this area as the supplementary eye fields. Eye fields are divided into two hemispheres regulated by ...

Metro Ethernet Forum MEF, founded in 2001, is a nonprofit international industry consortium, of network, cloud, and technology providers. MEF, originally known as the Metro Ethernet Forum, was dedicated to Carrier Ethernet networks and services, and in recent years, ...

* Modernized e-File (MeF), an electronic system for filing U.S. income taxes * Modified Energy Factor (

Energy Star Energy Star (trademarked ENERGY STAR) is an Efficient energy use, energy-efficiency program established in 1992. It is administered by the U.S. Environmental Protection Agency (EPA) in partnership with the U.S. Department of Energy (DOE). The EPA ...

Rating Value, US Department of Energy (DOE)) * Mouse Embryonic Fibroblast * Museo Paleontológico Egidio Feruglio collection code * Myocyte Enhancer Factor (2) * Mouse Embryonic Fibroblast (MEF) Isolation Enzyme 1 *

Multiscale Electrophysiology Format Multiscale Electrophysiology Format (MEF) was developed to handle the large amounts of data produced by large-scale electrophysiology in human and animal subjects. MEF can store any time series data up to 24 bits in length, and employs lossless rang ...

, a data format used in electrophysiology

Transport

Mei Foo station Mei Foo () is an MTR station on the Tsuen Wan line and the . It is located under Mei Foo Sun Chuen, Lai Chi Kok, New Kowloon. It is the only interchange station between both lines, situated between and stations on the Tsuen Wan line and ...

, Hong Kong, MTR station code {{disambiguation