| Abbreviation | Definition |
|---|---|
| CMTC | Canadian Manoeuvre Training Centre |
| CMTF | Canadian Malnutrition Task Force |
| CMTP | Canadian Music Theatre Project |
| CMTS | Canadian Manufacturing and Technology Show |
| CMU | Canadian Mennonite University |
| CMUPS | Canadian Mission to Unreached Peoples Society |
| CMVA | Canadian Machinery Vibration Association |
| CMVSA | Canadian Motor Vehicle Safety Act |
| CMVSS | Canada Motor Vehicle Safety Standards |
| CMVSS | Canadian Motor Vehicle Safety Standard |
| CMWA | Canadian Masters Windsurfing Association |
| CMWC | Canadian Military Wives Choirs |
| CMWC | Canadian Municipal Water Consortium |
| CN | Canada Needle |
| CNAC | Canadian Numbering Administration Consortium |
| CNAF | Canadian National Autism Foundation |
| CNAM | Canadian Network of Asset Managers |
| CNATS | Canadian Nurses Association Test Service |
| CNATS | Canadian Nurses Association Testing Services |
| CNBA | Canadian Norwegian Business Association |