| Highway 66 | Paradise Seeds | | 60/40 | View variety |
| Highway Harmony | Karma Genetics | | 60/40 | View variety |
| Highway Maxx | Purple City Genetics | | 80/20 | View variety |
| Hijack Automatic | Auto Seeds | | 50/50 | View variety |
| Hijo De Chingada | SnowHigh Seeds | | 50/50 | View variety |
| HillBilly Armor | Rare Dankness Seeds | | 90/10 | View variety |
| Hillbilly OG | Farmhouse Genetics | | 70/30 | View variety |
| Hills Have Eyes | Loompa Farms | | 80/20 | View variety |
| Hilo Hammer | Archive Seed Bank | | 50/50 | View variety |
| Himalaya Blue Diesel | New420Guy Seeds | | 50/50 | View variety |
| Himalaya Blue Diesel | Short Stuff Seedbank | | 70/30 | View variety |
| Himalaya Gold | Green House Seeds | | 50/50 | View variety |
| Himalaya Haze | Unknown | | 50/50 | View variety |
| Himalaya Orange Diesel | Short Stuff Seedbank | | 70/30 | View variety |
| Himalaya Snow | ACE Seeds | | 10/90 | View variety |
| Himalayan Blue Hash | Lucky 13 Seed Company | | 70/30 | View variety |
| Himalayan Gold | Unknown | | 80/20 | View variety |
| Himalayan Headchanger | Old World Organics | | 50/50 | View variety |
| Himalayan Monster | DutchBreed | | 80/20 | View variety |
| Himalayan Witch Hunt | Third Eye Genetics | | 80/20 | View variety |