| Kong 47 | Dr. Underground | | 40/60 | View variety |
| Kong OG | NorStar Genetics | | 60/40 | View variety |
| Kong Ox | Holy Smoke Seeds | | 60/40 | View variety |
| Kong Pow | Master Thai | | 80/20 | View variety |
| Kong's Krush | Green House Seeds | | 60/40 | View variety |
| Kongo | Prolific Coast Seeds | | 60/40 | View variety |
| Kongzilla | Elev8 Seeds | Unknown Strain · [unknown Nerds Rope] × Original Glue · Gorilla Glue #4 | 50/50 | View variety |
| Kookie Monstar | Unknown | | 60/40 | View variety |
| Kookies | Moxie 710 | | 60/40 | View variety |
| Kool Aid Man | Beleaf Cannabis | | 30/70 | View variety |
| Kool Grapes | Compound Genetics | | 60/40 | View variety |
| Kool Whip | Lit Farms | | 60/40 | View variety |
| Kool-Aid Smile | Andromeda Strains | | 50/50 | View variety |
| Koosh (Afberry Auto lineage, Purple City Genetics) | Unknown | | Unavailable | View variety |
| Koosh (Harambe OG Auto lineage, Purple City Genetics) | Unknown | | Unavailable | View variety |
| Koosh (Kixx lineage, Beleaf Cannabis) | Unknown | | Unavailable | View variety |
| Koosh (Koosh the Magic Dragon lineage, Beleaf Cannabis) | Unknown | | Unavailable | View variety |
| Koosh the Magic Dragon | Beleaf Cannabis | | 40/60 | View variety |
| Kopasetic Kush | Delta 9 Labs | | 60/40 | View variety |
| Korengal Kush | Lucky 13 Seed Company | | 100/0 | View variety |