| Abbreviation | Definition |
|---|---|
| CFT | Conservation Futures Tax |
| CFTO | Conservation for the Oceans |
| CGRC | Conservation Genetics Resource Center |
| CHEIN | Conservation Higher Education Institutions Network |
| CICP | Cerf Island Conservation Program |
| CICR | Center for Integrative Conservation Research |
| CIFCA | Cornwall Inshore Fisheries and Conservation Authority |
| CIG | Conservation Innovation Grants |
| CIPEC | Canadian Industry Program for Energy Conservation |
| CIPEC | Canadian Industry Programme for Energy Conservation |
| CITF | Conservation Innovations Task Force |
| CJC | Conservation Job Corps |
| CJC | Conservation Jobs Corps |
| CKCD | Central Klickitat Conservation District |
| CLAW | Conservation Leadership Action Workshop |
| CLCC | CARIBBEAN LANDSCAPE CONSERVATION COOPERATIVE |
| CLCV | California League of Conservation Voters |
| CLF | Conservation Law Fnd |
| CLFT | Conservation Leaders for Tomorrow |
| CLLC | Center for Large Landscape Conservation |