| Close Shave | Dank Genetics | | 60/40 | View variety |
| Cloud #7 | Herbaria | | 20/80 | View variety |
| Cloud #9 | Dinafem | | 30/70 | View variety |
| Cloud City OG | Lost River Seeds | | 50/50 | View variety |
| Cloud Spin | Cult Classics Seeds | | 50/50 | View variety |
| Cloud Walker | Green House Seeds | | 30/70 | View variety |
| Cloudberry | Sin City Seeds | | 50/50 | View variety |
| Clown Royal | Second Generation Genetics | | 40/60 | View variety |
| Clown Shoes OG | Dark Horse Genetics | | 70/30 | View variety |
| Clowns Cookies | Scapegoat Genetics | | 60/40 | View variety |
| Clowns Kush | Scapegoat Genetics | | 50/50 | View variety |
| Clownz | Savage Genetics | | 70/30 | View variety |
| Club Kush | Karma Genetics | | 60/40 | View variety |
| Cluster | CH9 Female Seeds | | 60/40 | View variety |
| Cluster Bomb | Archive Seed Bank | | 80/20 | View variety |
| Cluster Bomb | Bomb Seeds | | 40/60 | View variety |
| Cluster Cookies | 7 East Genetics | | 60/40 | View variety |
| Cluster Funk | Bodhi Seeds | | 60/40 | View variety |
| Clusterfuck | AK Bean Brains | | 50/50 | View variety |
| CO Super Skunk | Top Dawg Seeds | | 50/50 | View variety |