ILR

ILR may refer to:


 * Institute for Legal Reform, an advocacy group founded in 1998 by the United States Chamber of Commerce
 * Cornell University School of Industrial and Labor Relations
 * Industrial and Labor Relations Review (ILR Review), a publication of the Cornell University School of Industrial and Labor Relations
 * Interagency Language Roundtable, an unfunded organization on foreign language activities in the United States Federal Government
 * ILR scale, a measure of language proficiency originally created by the Interagency Language Roundtable
 * Indefinite leave to remain, an immigration status in the United Kingdom
 * Ivo Lola Ribar Institute, a Serbia-based manufacturer of heavy machine tools
 * Independent Local Radio, a term for commercial radio in the United Kingdom and Ireland
 * Institut Luxembourgeois de Régulation, a regulatory agency in Luxembourg
 * Iowa Law Review, published by the University of Iowa College of Law
 * Implantable loop recorder, a medical diagnostic device
 * Interleukin receptor (IL-R), a cytokine receptor for interleukins
 * Ignitable liquid residues, used in the detection of fire accelerants
 * Individualised Learner Record, a data collection submitted by further education providers in England