| Crenshaw Kush | South Bay Genetics | | 60/40 | View variety |
| Creole | Da Bean Co. | | 60/40 | View variety |
| Crepes | Lit Farms | | 60/40 | View variety |
| Crescendo | Ethos Genetics | | 60/40 | View variety |
| Crestside Cutthroat | Fygtree | | 40/60 | View variety |
| Crimea Blue | Barneys Farm | | 40/60 | View variety |
| Criminal + | Ripper Seeds | | 80/20 | View variety |
| Crimson | Stoney Girl Gardens | | 60/40 | View variety |
| Crimson Cookies | True Canna Genetics | | 70/30 | View variety |
| Crimson Cream Soda | Alien Genetics | | 60/40 | View variety |
| Crimson Crush | Gage Green Genetics | | 60/40 | View variety |
| Crimson Quack | Red Scare Seed Company | | 80/20 | View variety |
| Crimson Skunk | Sumo Seeds | | 10/90 | View variety |
| Crinkle Crunch | Mephisto Genetics | | 60/40 | View variety |
| Crinkled Cookies F4 | Night Owl Seeds | | 50/50 | View variety |
| Cripit | Stoney Girl Gardens | | 50/50 | View variety |
| Crippie D | Katsu Seeds | | 50/50 | View variety |
| Cripple Creek Cookies | Twisty Seeds | | 60/40 | View variety |
| Crippled Rhino | Stoney Girl Gardens | | 60/40 | View variety |
| Crippy Killer | Archive Seed Bank | | 70/30 | View variety |