| Abbreviation | Definition |
|---|---|
| ICHF | International Conference on the History of Freemasonry |
| ICHR | International Centre for Humanitarian Reporting |
| ICHR | International Council for Human Rights |
| ICI | Institute for Community Inclusion |
| ICI | Institute on Community Integration |
| ICI | International Cocoa Initiative |
| ICID | International Centre for Infectious Diseases |
| ICIHS | International Center for the Integration of Health and Spirituality |
| ICI-RS | International Consultation on Incontinence - Research Society |
| ICL | Institute of Children's Literature |
| ICLAS | International Council for Laboratory Animals |
| ICLU | Indiana Civil Liberties Union |
| ICMA | Illinois Country Music Association |
| ICME | International Council on Materials Education |
| ICMR | Indian Council of Medical Research |
| ICNDT | International Committee on Non-Destructive Testing |
| ICNM | International Center for New Media |
| ICoTA | Intervention Coiled Tubing Association |
| ICoTA | Intervention & Coiled Tubing Association |
| ICP | Institute for Community Peack |