| Matanuska Mint | Sagarmatha Seeds | | 100/0 | View variety |
| Matanuska Thunder | Brothers Grimm | | 80/20 | View variety |
| Matanuska Thunderfuck | Unknown | | 100/0 | View variety |
| Matanuska Thunderfuck | Dr. Greenthumb | | 20/80 | View variety |
| Matanuska Thunderfuck | AK Bean Brains | | 60/40 | View variety |
| Matanuska ThunderFuck | Alaska Cannabis Cache | | 20/80 | View variety |
| Matanuska Thunderfuck x SCBDX | SuperCBDx | | 40/60 | View variety |
| Matanuska Tundra | Sagarmatha Seeds | | 100/0 | View variety |
| Mataro Blue | Kannabia Seeds | | 80/20 | View variety |
| Mataro Blue CBD | Kannabia Seeds | | 60/40 | View variety |
| Mataró Blue | The Bulldog Seeds | | 80/20 | View variety |
| Mataró Blue Automática | Kannabia Seeds | | 60/40 | View variety |
| Mate | Pacific NW Roots | | 70/30 | View variety |
| Matriarch OG | Mamiko Seeds | | 60/40 | View variety |
| Matterhorn | Pacific NW Roots | | 80/20 | View variety |
| Matty Cakes | AK Bean Brains | | 60/40 | View variety |
| Maturin | Alphakronik Genes | | 70/30 | View variety |
| Mau-Mau | The Blazing Pistileros | | 70/30 | View variety |
| Maui Bubblegum | Matchmaker Genetics | | 50/50 | View variety |
| Maui Gold | SnowHigh Seeds | | 40/60 | View variety |