| Abbreviation | Definition |
|---|---|
| ICAF | International Child Art Foundation |
| ICAN | Interactive Collaborative Autism Network |
| ICAN | International Campaign to Abolish Nuclear weapons |
| ICAN | International Cesarean Awareness Network |
| ICANN | Internet Corporation for Assigned Names and Numbers |
| ICAPP | Interstitial Cystitis Association Physician Perspectives |
| ICAR | Indian Council of Agriculture Research |
| ICAS | Indian Civil Accounts Service |
| ICAT | Illinois Coalition Against Tobacco |
| ICAT | Indian Community Activities Tokyo |
| ICB | Institute of Certified Bookkeepers |
| ICBL | International Campaign to Ban Land mines |
| ICBS | International Conference Of Banking Supervisors |
| ICC | Institut pour la citoyenneté canadienne |
| ICC | Institute for Canadian Citizenship |
| ICC | International Christian Concern |
| ICCC | Indo-Canadian Community Centre |
| ICCCPO | International Confederation of Childhood Cancer Parent Organisations |
| ICCF | International Conservation Caucus Foundation |
| ICCL | Institute of Computer and Communications Law |