IED

IED may refer to:

Devices

 * Improvised explosive device, an explosive device often used in unconventional warfare
 * Instantaneous electrical detonator, used to trigger an explosive device
 * Intelligent electronic device, in the electric power industry
 * Implantable electronic device, pacemaker

Dictionaries

 * Indo-European Etymological Dictionary
 * Indogermanisches etymologisches Wörterbuch (Indo-European Etymological Dictionary), by Julius Pokorny
 * Interlingua–English Dictionary, the first major presentation of Interlingua to the public

Healthcare

 * Inter-ictal epileptiform discharge, a characteristic of epileptic seizures
 * Intermittent explosive disorder, a mental health disorder
 * Intestinal epithelial dysplasia, another name for congenital tufting enteropathy

Organizations

 * Information Engineering Directorate, Information Technology Directorate of the UK Department of Trade and Industry
 * Institute for Educational Development, at Aga Khan University
 * Institute of Economic Development
 * Institution of Engineering Designers, in the UK
 * Istituto Europeo di Design, European Institute of Design
 * NASU Institute of Electrodynamics, a research institute in Kyiv

Other uses

 * Industrial Emissions Directive, a European Union directive
 * Infliction of Emotional Distress, a tort cause of action, falling under intentional torts