| Maduro Oatmeal Brown Ale | Cigar City Brewing | American Brown Ale | 5.5% |
| Maduro Robusto | Paradox Beer Company | Wild Ale | 10.0% |
| Maelstrom American Stout | Cornel's Brewing Co. | American Stout | 6.8% |
| Maes Pils | Brouwerij Alken-Maes | German Pilsner | 5.2% |
| Maestro | Alesong | American Barleywine | 14.0% |
| Maestro | Bearded Iris Brewing | American Imperial Stout | 10.0% |
| The Mage | Anchorage Brewing Co | New England IPA | 6.4% |
| Mage Fight | Urban Family Brewing | Imperial IPA | 8.5% |
| Magella Dark Abbey Ale | Parkway Brewing Co | Dubbel | 11.0% |
| Magenta | Oxbow Brewing Company | | 7.5% |
| Magenta Mountain | Burlington Beer Company | Gose | 5.5% |
| Maggie | Crabtree Brewery | Wild Ale | |
| Maggie's Peach Farmhouse Ale | Terrapin Beer Company | Saison | 5.3% |
| Maggies | Terrapin Beer Company | Saison | 5.3% |
| Magic #3 - Protein Shake IIPA | Omnipollo | Imperial IPA | 8.0% |