| Abbreviation | Definition |
|---|---|
| KRI | Khan Resources Incorporated (de-listed) |
| KRN | Karnalyte Resources Inc. |
| KRN | Karnalyte Resources Incorporated |
| KSP | Kingsway Linked Return of Capital Trust |
| KYC | KnowYourClient (OSC forms) |
| L | Loblaw Companies Limited |
| LAC | Lithium Americas Corp. |
| LAC | Lithium Americas Corporation |
| LAM | Laramide Resources Ltd. |
| LAM | Laramide Resources, LTD. (de-listed) |
| LAM | Laramide Resources, LTD. (de-listed) |
| LAS | Lassonde Industries Inc. |
| LAS | Lassonde Industries Incorporated (de-listed) |
| LAS | Lassonde Industries Incorporated (de-listed) |
| LB | Laurentian Bank of Canada |
| LBE | Liberty Mines Inc. |
| LBE | Liberty Mines Incorporated (de-listed) |
| LBE | Liberty Mines Incorporated (de-listed) |
| LBS | Life & Banc Split Corp. |
| LBS | Life & Banc Split Corporation |