| Abbreviation | Definition |
|---|---|
| IIMT | International Institute of Management in Technology |
| IIN | Institute for Integrative Nutrition |
| IINM | International Institute for Nanocomposites Manufacturing |
| IIOC | International Institute of Colorimetry |
| IIOC | Irish Institute of Celebrants |
| IIOC | Islamic Institute of Orange County |
| IIOC | Islamic Institute of Orange Cty |
| IIOD | Indian Institute of Organization Development |
| IIOD | International Institute of Directors |
| IIOD | Irish Institute of Directors |
| IIOGS | International Institute Of Oil And Gas Safety |
| IIOM | International Institute for Original Medicine |
| IIOM | International Institute for Outsource Management |
| IIOM | International Institute of Obsolescence Management |
| IIOM | International Institute of Oriental Medicine |
| IIOM | International Institute of Original Medicine |
| IIP | Indian Institute of Packaging |
| IIP | Institute for Industrial Productivity |
| IIP | Institute for Information Policy |
| IIP | Institute for International Perspectives |