| Abbreviation | Definition |
|---|---|
| ICBA | Independent College Bookstore Association |
| ICBA | Independent Contractors and Businesses Association (Canada) |
| ICC | International Color Consortium |
| ICCA | International Council of Commercial Arbitration |
| ICCP | International Conformity Certification Program |
| ICCRC | Immigration Consultants of Canada Regulatory Council |
| ICEG | International Congress of E-government |
| ICES | Institute for Complex Engineered Systems |
| ICES | Institute of Chemical and Engineering Sciences |
| ICES | International Credential Evaluation Service |
| ICH | International Conference on Harmonisation (of Technical Requirements for Registration of Pharmaceuticals for Human Use) |
| ICH | International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use |
| ICI | Independent Colleges of Indiana |
| ICI | Independent Curators International |
| ICIA | Irish Cellular Industry Association |
| ICICI | Industrial Credit Investment Corporation of India |
| ICIJ | International Consortium of Investigative Journalists |
| ICIRN | Interagency Council oF Information Resources in Nursing |
| ICMA | International Christian Maritime Association |
| ICMA | International City/County Management Association |