ICR may refer to: Biology Idiopathic condylar resorption, a temporomandibular joint disorder Immunological constant of rejection, Immunology concept relating to tissue rejection Implanted cardiac resynchronization device, in cardiology Imprinting Control Region, genetic imprinting Electronics and physics Inductance (L), Capacitance (C), Resistance (R), see LCR meter and RLC circuit Instant centre of rotation, the point in a body undergoing planar movement that has zero velocity at a particular time Intelligent character recognition, advanced OCR Ion cyclotron resonance, a physics phenomenon in cyclotron particle acceleration Organizations Catholic University of Rennes (Institut catholique de Rennes), a French Catholic university Institute for Centrifugal Research, imaginary company created by Till Nowak as the impetus behind The Centrifuge Brain Project Institute for Comparative Research in Human and Social Sciences, a Japanese institution in humanities and social sciences Institute for Creation Research, a creationist organization in Dallas, Texas Institute of Cancer Research, a college within the University of London Institute of Cetacean Research, a Japanese institution International Care & Relief, international development charity International Centre of Reconstruction International Rescue Committee, a global humanitarian, relief, and refugee-assistance non-government agency Iraqi Council of Representatives, a political council of Iraq Central Institute for Restoration (Istituto Centrale per il Restauro), art conservation institute in Rome Romanian Cultural Institute (Institutul Cultural Român) The Institute for Cultural Research, a London-based educational charity founded by Idries Shah Other uses Industrial Cases Reports, a law report Inishowen Community Radio (ICR FM), a local radio station broadcasting on the Inishowen Peninsula in Ireland Intercolonial Railway, a historic Canadian railway Interest coverage ratio, a measure of a firm's ability to pay interest on outstanding debt International Civilian Representative for Kosovo, a civilian officer Islander Creole English, ISO 639-3 code Inter-City Railcar, class of 63 Irish diesel multiple units