| Kapri Sun | Lost River Seeds | | 50/50 | View variety |
| Karakoram Kush | DutchBreed | | 100/0 | View variety |
| Karamelo | Kannabia Seeds | | 100/0 | View variety |
| Karate Kid | Sensi Seeds | | 80/20 | View variety |
| Karel's Cookies | Super Sativa Seed Club | | 60/40 | View variety |
| Karel's Haze | Super Sativa Seed Club | | 50/50 | View variety |
| Karel’s Dank | Super Sativa Seed Club | | 50/50 | View variety |
| Karel’s Haze X Starfighter | AK Bean Brains | | 60/40 | View variety |
| Karel’s Herer Haze | Super Sativa Seed Club | | 50/50 | View variety |
| Karen Kush | Zamnesia | | 60/40 | View variety |
| Karen Kush Automatic | Zamnesia | | 50/50 | View variety |
| Kariba Surprise | African Seeds | | 0/100 | View variety |
| Karibeña | Kannabia Seeds | | 70/30 | View variety |
| Karl Malone | Terp Fi3nd | | 60/40 | View variety |
| Karma Bitch | Rare Dankness Seeds | | 60/40 | View variety |
| Karma Haze | Top Dawg Seeds | | 50/50 | View variety |
| Karma OG Jack | Karma Genetics | | 50/50 | View variety |
| Karma's Jack | Karma Genetics | | 50/50 | View variety |
| Karma's OG | Karma Genetics | | 80/20 | View variety |
| KarmaRado OG | Karma Genetics | | 50/50 | View variety |