IEP

IEP may refer to:

Science and technology

 * Immunoelectrophoresis, biochemistry method
 * Inclusion–exclusion principle, in the mathematics branch of combinatorics
 * Integrated electric propulsion, in marine propulsion
 * Isoelectric point, the pH where a molecule is electrically neutral

Education and research

 * Individualized Education Program, in the United States, for children with disabilities
 * Instituts d'études politiques (Institutes of Political Studies), higher education institutions in France
 * Institute for Economics and Peace, a think tank
 * Institute for European Politics, a Berlin research centre
 * Institute for Political Studies – Catholic University of Portugal (Instituto de Estudos Políticos)
 * Internet Encyclopedia of Philosophy

Other uses

 * Icahn Enterprises, an American conglomerate
 * Independent Expert Panel, concerned with misconduct by members of the UK parliament
 * Institute of Employability Professionals, a British professional association
 * Intercity Express Programme, a British rail transport initiative
 * Irish pound, the pre-euro currency of Ireland