| Abbreviation | Definition |
|---|---|
| CCRP | Collaborative Crop Research Program |
| CCSA | Chesapeake Community Supported Agriculture |
| CCSA | Combined Community Supported Agriculture |
| CCUA | Columbia Center for Urban Agriculture |
| CCUA | Columbia Center of Urban Agriculture |
| CD | Cow Dung |
| CDA | Colorado Department of Agriculture |
| CDC | Crop Development Centre |
| CDCS | Canaryseed Development Commission of Saskatchewan |
| CDE | Chickens, Dairy, and Equine |
| CDIC | Canadian Dairy Information Centre |
| CEA | Controlled Environment Agriculture |
| CEAC | Controlled Environment Agriculture Center |
| CEAI | Centre for Environmental and Agricultural Informatics |
| CED | Calving Ease Direct |
| CEF | Central Experimental Farm |
| CEI | Center for Emerging Issues (United States Department of Agriculture) |
| CELAC | Collecting and Exchange of Local Agricultural Content |
| CELT | Central European Land Teracer |
| CEMBN | China Edible Mushroom Business Net |