| Abbreviation | Definition |
|---|---|
| CDRO | Canadian Dachshund Rescue Ontario |
| CDRS | Canadian Depositary Receipts |
| CDS | Country Day School |
| CDSA | Controlled Drugs and Substances Act |
| CDSM | Canadian Digital Surface Model |
| CDTI | Canadian Disease Treatment Index |
| CE | Canada East |
| CE | Canadian Edition |
| CEAA | Canadian Environmental Assessment Act |
| CEAA | Canadian Environmental Assessment Agency |
| CEAA | Canadian Environmental Auditing Association |
| CEAB | Canadian Engineering Accreditation Board |
| CEAC | Centre for Experimental Art and Communication |
| CEAD | Canada Eastern Amber Durum |
| CEAF | Canadian Enterprise Architecture Forum |
| CEASA | Canadian Electrical Appliance Service Association |
| CEBA | Canadian Electric Bicycle Association |
| CEBA | Canadian Emergency Business Account |
| CEBA | Canadian Engaged Buddhism Association |
| CEBC | Canada Egypt Business Council |