MEF
English
Proper noun
MEF
- (.NET, software) Initialism of Managed Extensibility Framework (a component of the .NET Framework 4.0 aiming to create lightweight, extensible applications)
- (military) Initialism of Marine Expeditionary Force (one of the major subdivisions of the United States Marine Corps)
- (philately, overprint on British stamps) Initialism of Middle East Forces.