| Abbreviation | Definition |
|---|---|
| IIBM | International Institute |
| IIBS | International Institute for Baroque Studies |
| IIBS | International Institute of Business Studies |
| IIC | Institute for Integrated Catalysis |
| IIC | Institution Identification Codes |
| IIC | International Institute for Conservation |
| IICA | Indian Institute of Corporate Affairs |
| IICA | Institute of Instrumentation Control and Automation |
| IICA | International Institute of Culinary Arts |
| IICC | Institute for Information on the Crimes of Communism |
| IICC | Institute for International Christian Communication |
| IICD | Indian Institute of Crafts and Design |
| IICD | Indonesian Institute for Corporate Directorship |
| IICD | Institute for International Cooperation and Development |
| IICD | International Institute for Communication and Development |
| IICD | International Institute for Creative Development |
| IICD | International Institute of Christian Discipleship |
| IICE | Institute for International and Comparative Education |
| IICL | Institute for International and Comparative Law |
| IICL | Institute of International Commercial Law |