| Abbreviation | Definition |
|---|---|
| ICOU | International Communicators Open University |
| ICP | Individual Concentration Program |
| ICP | Integrated Chemistry and Physics |
| ICPU | International Canadian Pre University |
| ICR | Institute of Clinical Research |
| ICR | Intercollegiate Center in Rome |
| ICRC | Innovative Construction Research Centre |
| ICRISAT | International Crops Research Institute for the Semi-Arid Tropics |
| ICS | Information and Computer Sciences |
| ICSA | International Centre for Security Analysis |
| ICSD | International Center for Sustainable Development |
| ICSF | Institute for Computer Security and Forensics |
| ICSG | Institute for Competitive State Government |
| ICSG | International Center for Self-Governance |
| ICSG | International Copper Study Group |
| ICSG | Irish Centre for Social Gerontology |
| ICSI | Institute for Clinical Systems Improvement |
| ICSI | International Computer Science Institute |
| ICSL | Inns of Court School of Law |
| ICSL | Intelligent Control Systems Laboratory |