| Abbreviation | Definition |
|---|---|
| CCHS | Chester County Historical Society |
| CCHS | Clark County Humane Society |
| CCHS | Columbia County Historical Society |
| CCHS | Copper Country Humane Society |
| CCI | Canadian Council of Professional Engineers |
| CCI | Conseil Canadien des Ingénieurs |
| CCI | Conseil Canadien des Ingnieurs |
| CCMS | Centre for Communication Media and Society |
| CCMS | Clark County Medical Society |
| CCMS | Collier County Medical Society |
| CCMS | Committee on the Challenges of Modern Society |
| CCOGS | Canadian County Oklahoma Genealogical Society |
| CCOS | Central California Optometric Society |
| CCPE | Conseil Canadien des Ingénieurs |
| CCPE | Conseil Canadien des Ingnieurs |
| CCPG | Canadian Council of Professional Geoscientists |
| CCPG | Conseil Canadien des Géoscientifiques Professionnels |
| CCPG | Conseil Canadien des Goscientifiques Professionnels |
| CCPM | Collège Canadien des Physiciens en Médecine |
| CCPM | Collge Canadien des Physiciens en Mdecine |