| Mmmhops | Hanson Brothers Beer Company | American Pale Ale | |
| MMMM | Dark Horse Brewing Co. | American Porter | 8.0% |
| MMXIV-I | TRVE Brewing Co. | | |
| MMXIV-II | TRVE Brewing Co. | | |
| MMXIV-III | TRVE Brewing Co. | | |
| MMXIV-IV | TRVE Brewing Co. | | |
| MO | Maine Beer Company | American Pale Ale | 6.0% |
| Mo Money Mo Problems | Block 3 Brewing Co. | American IPA | 6.0% |
| Mo pale ale | Maine Beer Company | American Pale Ale | 6.0% |
| Mo' Betta Bretta | The Lost Abbey | Wild Ale | 6.2% |
| Mo' Betta Bretta | The Lost Abbey / New Belgium Brewing Co. | | |
| Mo' Shuggie Soulbender IPA | SingleCut Beersmiths | American IPA | 7.4% |
| Moa Noir | Moa Brewing Company | Schwarzbier | 5.0% |
| Moat Imperial Stout | Moat Mountain Smoke House & Brewing Co | Russian Imperial Stout | 9.0% |
| Moat Water | Cigar City Brewing | American Imperial Stout | 8.0% |