EFW

EFW may refer to:

Economic Freedom of the World
Energy-from-waste, see Waste-to-energy
Jefferson Municipal Airport, in Jefferson, Iowa, IATA airport code EFW
Electric Field and Wave experiment, a scientific instrument on the Cluster space mission
Elbe Flugzeugwerke, a Dresden-based subsidiary of Airbus and ST Aerospace specialising in freighter and tanker conversion