| Abbreviation | Definition |
|---|---|
| TPL | Tethys Petroleum Limited |
| TPX | Molson Coors Canada Inc. |
| TPX | Molson Coors Canada, Incorporated |
| TRE | Sino-Forest Corporation |
| TRF | First Asset Energy & Resource Fund |
| TRH | Triax Diversified High-Yield Trust |
| TRI | Thomson Reuters Corporation |
| TRP | TransCanada Corporation |
| TRY | Troy Resources NL |
| TRZ | Transat A.T. Inc. |
| TRZ | Transat A.T. Incorporated, Voting and Variable Voting Shares |
| TRZ.B | Transat A.T., Incorporated, Class B (de-listed) |
| TRZ.B | Transat A.T., Incorporated, Class B (de-listed) |
| TS | Torstar Corporation |
| TSB | Torstar Corporation "B" |
| TT | Terra Energy Corp. |
| TT | Terra Energy Corporation |
| TTZ | Total Telcom, Inc. |
| TV | Trevali Resources Corporation |
| TVA | TVA Group Inc. |