| Abbreviation | Definition |
|---|---|
| CCTS | Commission for Complaints for Telecom-television Services |
| CCU | Consolidated Commission on Utilities |
| CCYD | CARICOM Commission on Youth Development |
| CDA | Commission Disbursement Authorization |
| CDAA | the Commission for the Development and Application of the Agreement |
| CDAC | Commission on Dental Accreditation of Canada |
| CDCA | Commission on Dental Competency Assessments |
| CDOA | Commission départementale d'orientation agricole |
| CDTP | Commission for Developing Teaching Profession |
| CEC | Chief Election Commission |
| CEC | Commission for Environmental Cooperation |
| CECC | Congressional Executive Commission on China |
| CEE | Commission for Entrance Exam |
| CEI | Commission on Equity and Inclusion |
| CENI | Commission Electorale Nationale |
| CEPC | Crown Estate Paving Commission |
| CEPEJ | Council of Europe European Commission for the efficiency of justice |
| CER | Commission of Energy Regulation |
| CERC | Central Electricity Regulatory Commission |
| CEWR | Commission for Energy and Water Regulation |