MEI may refer to:

Education

MEI Academy MEI Academy (abbreviated as MEI) is a study abroad organization that specializes in experiential learning, academic coursework, and educational travel. Founded in 1997 by Joe and Rita Mei, the company aims to offer a global high school experience. ...

, an international school * Mathematics in Education and Industry, an examination board affiliated with the OCR examination board *

Mennonite Educational Institute The Mennonite Educational Institute (MEI) is an independent country day school located in Abbotsford British Columbia, approximately 70 kilometres from Vancouver. MEI consists of four divisions — a preschool, elementary, middle, and secondary s ...

, an independent grades K-12 school in Abbotsford, British Columbia

Businesses

MEI (company) MEI Conlux (formerly known as Mars Electronics International) is a manufacturer of electronic banknote validators, coin acceptors and changers. MEI was spun off to private investment interests in July 2006. In December 2012, it was sold to Crane ...

, manufacturer of cash handling systems *

Matsushita Electric Industrial Co., Ltd. is a Japanese multinational electronics manufacturer, headquartered in Kadoma, Japan. It was founded in 1918 as in Fukushima by Kōnosuke Matsushita. The company was incorporated in 1935 and renamed and changed its name to in 2008. In 20 ...

Micro Electronics, Inc. Micro Electronics, Inc. is a privately held American retailer based in Hilliard, Ohio. It was founded in 1979 by John Baker. The company is the parent of the retail chain Micro Center, including its online division, Micro Center Online. It also ...

* Member of the

Energy Institute The Energy Institute (EI) is a professional organization for engineers and other professionals in energy-related fields. The EI was formed in 2003 by the merger of the Institute of Petroleum (dating back to 1913) and the Institute of Energy ( ...

(MEI) * , an annual conference of Italian independent record labels

Government

* Ministry of Economy and Innovation (), the Portuguese economy ministry *

Middle East Institute The Middle East Institute (MEI) is a non-profit, non-partisan think tank and cultural center in Washington, D.C., founded in 1946. It seeks to "increase knowledge of the Middle East among the United States citizens and promote a better understan ...

* Marginal efficiency of investment or

internal rate of return Internal rate of return (IRR) is a method of calculating an investment's rate of return. The term ''internal'' refers to the fact that the calculation excludes external factors, such as the risk-free rate, inflation, the cost of capital, or fin ...

, a relationship between interest rate and amount of investment that can be profitable at a given time *

Meridian Regional Airport Meridian Regional Airport is a joint civil-military public use airport located at Key Field, a joint-use public/military airfield. It is located southwest of Meridian, a city in Lauderdale County, Mississippi, United States. The Meridian Airpo ...

Montreal Economic Institute The Montreal Economic Institute (MEI) is a non-profit research organization (or think tank) based in Montreal, Quebec, Canada. It aims at promoting economic liberalism through economic education of the general public and what it regards as effici ...

Meridian (Amtrak station) Union Station, also called the Meridian Multi-Modal Transportation Center, is an intermodal transportation center in Meridian, Mississippi. The station is located at 1901 Front Street in the Union Station Historic District within the larger M ...

, Amtrak station code MEI, Mississippi, United States * Medicare Economic Index

Military

* MEI Hellhound (Grenade), low velocity multipurpose grenade * MEI Mercury, a family of grenades developed by Martin Electronics, Inc.

Science

Iodomethane Iodomethane, also called methyl iodide, and commonly abbreviated "MeI", is the chemical compound with the formula CH3I. It is a dense, colorless, volatile liquid. In terms of chemical structure, it is related to methane by replacement of one hy ...

(methyl iodide, MeI), a halomethane * Multivariate ENSO index *

4-Methylimidazole 4-Methylimidazole (4-MeI or 4-MEI) is a heterocyclic organic chemical compound with molecular formula – or . It is formally derived from imidazole through replacement of the hydrogen in position 4 by a methyl group. It is a slightly yellowish ...

(4-MEI), a chemical compound

Technology

* Management Engine Interface, a component of

Intel Active Management Technology Intel Active Management Technology (AMT) is hardware and firmware for remote out-of-band management of select business computers, running on the Intel Management Engine, a microprocessor subsystem not exposed to the user, intended for monitor ...

Music Encoding Initiative The Music Encoding Initiative (MEI) is an open-source effort to create a system for representation of musical documents in a machine-readable structure. MEI closely mirrors work done by text scholars in the Text Encoding Initiative (TEI) and while ...

, a music encoding format

Other uses

* Media and Entertainment International, a former global union federation * ''

OECD Main Economic Indicators OECD Main Economic Indicators, often simply called Main Economic Indicators and abbreviated MEI, is a monthly publication by the Organisation for Economic Co-operation and Development (OECD) of economic indicators worldwide (with a focus on OECD cou ...

'', a monthly publication of the Organisation for Economic Co-operation and Development *

Merit, excellence, and intelligence Merit, excellence, and intelligence (MEI) is an organizational framework that emphasizes selecting candidates based solely on their merit, achievements, skills, abilities, intelligence and contributions. Companies that have substituted their div ...

– a framework that emphasizes selecting candidates based solely on their merit, achievements, skills, abilities, intelligence and contributions