| Abbreviation | Definition |
|---|---|
| CTL | Catalyst Paper Corporation |
| CTU | Le Chateau Inc. |
| CTU | Le Chateau Incorporated |
| CTY | Calian Technologies Ltd. |
| CTY | Calian Technologies LTD. (de-listed) |
| CTY | Calian Technologies LTD. (de-listed) |
| CU | Canadian Utilities Limited |
| CUF | Cominar Real Estate Investment Trust |
| CUM | Copper Mountain Mining Corporation |
| CUP | Caribbean Utilities Company LTD. Class A Ordinary shares |
| CUP | Caribbean Utilities Company, Ltd. |
| CUQ | Churchill Corporation (The) |
| CUQ | The Churchill Corporation (de-listed) |
| CUR | DiagnoCure Inc. |
| CUR | DiagnoCure Incorporated (de-listed) |
| CUR | DiagnoCure Incorporated (de-listed) |
| CUS | Canexus Income Fund |
| CVE | Cenovus Energy Inc. |
| CVE | Cenovus Energy Incorporated |
| CVG | Clairvest Group Inc. |