| Kernel PuTang S1 | MassMedicalStrains | | 40/60 | View variety |
| Kernel Swabi | MassMedicalStrains | | 50/50 | View variety |
| Kerosene Cookies | Enlightened Genetics | | 70/30 | View variety |
| Kerosene Krash | Dutch Passion | | 60/40 | View variety |
| Kerosene Kreme | Doja Seeds | | 60/40 | View variety |
| Ketama Xaoen | World of Seeds Bank | | 100/0 | View variety |
| Ketchup Haze | MassMedicalStrains | | 40/60 | View variety |
| Ketosis | Lupos CannaSeed | | 50/50 | View variety |
| Kevin Garnett | Lupos CannaSeed | | 60/40 | View variety |
| Kevorka | Cannarado Genetics | | 50/50 | View variety |
| Key Banana Pie | Old School Genetics | | 20/80 | View variety |
| Key Lime Chem | Second Generation Genetics | | 50/50 | View variety |
| Key Lime Custard | Oregon Microgrowers Guild | | 50/50 | View variety |
| Key Lime Jack | Happy Dreams Genetics | | 50/50 | View variety |
| Key Lime Kahluah | Sin City Seeds | | 60/40 | View variety |
| Key Lime Koffee | Pacific NW Roots | | 80/20 | View variety |
| Key Lime Kush | Katsu Seeds | | 70/30 | View variety |
| Key Lime Kush | Pacific NW Roots | | 80/20 | View variety |
| Key Lime Mints (Keylime Mints x Kush Mints #11 lineage, Seed Junky Genetics) | Unknown | | Unavailable | View variety |
| Key Lime Pie | Purple Caper Seeds | | 70/30 | View variety |