| Acronym | Definition |
|---|
| CII➣Confederation of Indian Industry |
| CII➣Chartered Insurance Institute (UK) |
| CII➣Construction Industry Institute (University of Texas) |
| CII➣Council of Institutional Investors |
| CII➣Call Identity Index |
| CII➣Common Interworking Indicator |
| CII➣Critical Information Infrastructures |
| CII➣Schedule II Controlled Substance (USA) |
| CII➣Critical Infrastructure Information |
| CII➣CARE International Indonesia |
| CII➣Conseil International des Infirmières (French: International Council of Nurses; Switzerland) |
| CII➣Council of International Investigators (Elmhurst, IL) |
| CII➣Commercial, Industrial & Institutional |
| CII➣Children's Institute International |
| CII➣Collective Investment Institutions (various locations) |
| CII➣Connecticut Innovations, Inc. |
| CII➣Critical Illness Insurance |
| CII➣Controls International, Inc. (Dallas, TX) |
| CII➣Co-Intelligence Institute (Eugene, OR) |
| CII➣Center for International Initiatives (American Council on Education) |
| CII➣Centre for International Intervention (UK) |
| CII➣Center on Innovation and Improvement (various schools) |
| CII➣Council on International Initiatives (Missouri) |
| CII➣Citi Infrastructure Investors |
| CII➣Communications and Information Industries |
| CII➣Cyprus International Institute for the Environment and Public Health (US and Cyprus) |
| CII➣Configuration Item Identification |
| CII➣Centre d'Information Internationale (French: International Information Center) |
| CII➣Counter Iranian Influence |
| CII➣Central Intelligence Institute (fictional agency) |
| CII➣Conference Interpreters International (Brussels, Belgium) |
| CII➣Certificat Informatique et Internet (French: Computer and Internet Certificate) |
| CII➣CaseWare IDEA, Inc. (various locations) |
| CII➣Cornerstone Industry, Inc. |
| CII➣Computer Intrusion Incident |
| CII➣Corporación Interaméricana de Inversiones (Spanish: Inter America Investment Corporation) |
| CII➣Calculated Ignition Index |
| CII➣Compatibility, Interoperability, and Integration |
| CII➣Common Integrated Infrastructure |
| CII➣Conseil Investissement Immobilier (French: Investment Real Estate Council) |
| CII➣Computer-Integrated Instruction |
| CII➣Configuration Item Index |
| CII➣Compatibility, Integration, and Interoperability |
| CII➣Chemistry International Instrument |
| CII➣Cleveland Industries Inc. |
| CII➣Criminal Information Index |
| CII➣Criminal Investigation Index |
| CII➣Configuration Identification/Item Index |