| Abbreviation | Definition |
|---|---|
| CPTAC | Clinical Proteomic Technology Assessment for Cancer (National Cancer Institute) |
| CPWI | Chicago Pain and Wellness Institute |
| CQI | Coffee Quality Institute |
| CRCI | Columbia River Correctional Institution |
| CRDI | Community Research Development Institute |
| CRFI | Cardus Religious Freedom Institute |
| CRFI | Custom Roll Forming Institute |
| CRI | Carpet and Rug Institute |
| CRI | Center Research Institute |
| CRI | Centerstone Research Institute |
| CRI | Children's Research Institute |
| CRI | Communication Research Institute |
| CRI | Container Recycling Institute |
| CRI | Creative Retirement Institute |
| CRI | Cyber Readiness Institute |
| CRIA | Clinical and Research Institute on Addictions |
| CRICOS | Commonwealth Register of Institutions and Courses for Overseas |
| CRIDA | Central Research Institute for Dryland Agriculture |
| CRIG | Cocoa Research Institute of Ghana |
| CRIR | Clinical Research Institute at Rambam |