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 See also Indian Long Range Squadron (ILRS)