| Acronym | Definition |
|---|
| ICRS | Intelligent Crash Response System (vehicle safety feature) |
| ICRS | International Cartilage Repair Society |
| ICRS | International Coral Reef Symposium |
| ICRS | International Cannabinoid Research Society |
| ICRS | Intrastromal Corneal Ring Segments |
| ICRS | International Celestial Reference System |
| ICRS | Intracorneal Ring Segments |
| ICRS | Integrated Care Records Service (UK National Health Service) |
| ICRS | Instituts Canadiens de Recherche en Santé (Canadian Institutes of Health Research) |
| ICRS | Incident Case Reporting System |
| ICRS | International Conference on Radiation Shielding |
| ICRS | Inter City Railway Society (UK) |
| ICRS | Immaculate Conception Regional School |
| ICRS | International Commission on Remote Sensing |
| ICRS | International Chemical Reference Substances |
| ICRS | Institute for Conservation and Restoration Studies |
| ICRS | I Can't Remember Squat |
| ICRS | Integrated Crisis Response System |
| ICRS | Individual Commingled Rate Survey |
| ICRS | Intercom Remote Station |
| ICRS | Improved Command Receiver System |
| ICRS | Initial Claims Review System |
| ICRS | Interregional Cytogenetic Register System |
| ICRS | Institute of Comparative Regional Studies |
| ICRS | Institute of Contemporary Russian Studies |