| Abbreviation | Definition |
|---|---|
| CREF | Coastal Resource Enhancement Fund |
| CREO | Center For Rehabilitation Education And Orientation |
| CREP | Conservation Reserve Enhancement Program |
| CREST | Center for Renewable Energy and Sustainable Technology |
| CREST | Columbia River Estuary Study Taskforce |
| CREW | Citizens for Responsibility and Ethics in Washington |
| CRF | Cancer Research Foundation |
| CRF | Christian Relief Fund |
| CRFA | Cancer Research Foundation of America |
| CRFC | Cancer Research For Children |
| CRFDRF | Cancer Research Fund of the Damon Runyon - Walter Winchell Foundation |
| CRG | Consumer Rights Group |
| CRGR | Country Roads Group Riding |
| CRI | Cancer Research Institute |
| CRI | Child Recovery International |
| CRI | Child Rescue International |
| CRI | Core Relief Items |
| CRI | Court Reporting Institute |
| CRI | Croce Rossa Italiana |
| CRIC | Cumberland Regional Improvement Corporation |