CIIR
| Acronym | Definition |
|---|---|
| CIIR | Center for Intelligent Information Retrieval |
| CIIR | Catholic Institute for International Relations |
| CIIR | Counterintelligence Information Report (US DoD) |
| CIIR | China Institute of Industrial Relations (Beijing, China) |
| CIIR | Chloro Isobutene Isoprene Rubber (polymer) |
| CIIR | Canadian International Information Resource |