CIID
| Acronym | Definition |
|---|---|
| CIID | Copenhagen Institute of Interaction Design (Denmark) |
| CIID | Commission Internationale des Irrigations et du Drainage (French) |
| CIID | Computer Implemented Inventions Directive (European Union convention on software patents) |
| CIID | Central Criminal Register (US Army) |
| CIID | China Institute of Interior Design |
| CIID | Card Issuer Identifier (Sprint) |
| CIID | Counterintelligence and Investigations Division (US DHS) |
| CIID | Chronic Inflammatory Intestinal Disease |