| M.A.C x Wedding Cake x Thor’s Hammer F4 | Viking Gardens | | 50/50 | View variety |
| M.A.C. Stomper | Capulator | | 60/40 | View variety |
| M.A.C. Stomper Bx | The Bakery Genetics | | 60/40 | View variety |
| M.C. Nuggets | Ethos Genetics | | 60/40 | View variety |
| M.O.Z | Royal Jellies | | 60/40 | View variety |
| M10 X Purest Indica | AK Bean Brains | | 80/20 | View variety |
| M2 | Elev8 Seeds | | 0/100 | View variety |
| M8 Blue | Unknown | | 50/50 | View variety |
| Ma Chérie | Bean Drop Genetics | | 60/40 | View variety |
| Mabombe | Afropips Seeds | | 20/80 | View variety |
| MAC | Anesia Seeds | | 50/50 | View variety |
| MAC #1 X Orange Zkittlez | Surfr Seeds | | 50/50 | View variety |
| Mac 'n Cheese | Growers Choice | | 60/40 | View variety |
| MAC 1 | Barneys Farm | | 50/50 | View variety |
| MAC 1 | Capulator | | 50/50 | View variety |
| MAC 1 | Zamnesia | | 50/50 | View variety |
| MAC 1 Automatic | Zamnesia | | 50/50 | View variety |
| MAC 1 x Arise | Irie Genetics | | 50/50 | View variety |
| Mac 11 | Pheno Finder Seeds | | 60/40 | View variety |
| Mac 121 (Filmore Slim lineage, Purple City Genetics) | Unknown | | Unavailable | View variety |