CIIN
| Acronym | Definition |
|---|---|
| CIIN | Chemical Injury Information Network |
| CIIN | Chartered Insurance Institute of Nigeria (professional organization) |
| CIIN | California Integrated Information Network (California Department of General Services) |
| CIIN | Corporate Integrated Information Network |
| CIIN | Configuration Item Identification Number |
| CIIN | Community Interfaith/Interagency Network (Florida) |