| Malt Mac Winter Ale | McCashin's Brewery & Malthouse | | |
| Malt Monster Series - Oldwyn | Fort Collins Brewery | Old Ale | 8.5% |
| Malt Whisky Trail | Innis & Gunn | Scottish Ale | 7.4% |
| Malteser Weissbier | Stuttgarter Hofbru | Hefeweizen | 5.0% |
| Maltose Falcons Brownywine | Firestone Walker Brewing Co. | American Barleywine | 13.6% |
| Maltus | Brasseurs Illimités | Malt Liquor | 11.9% |
| Malus | Kane Brewing Company | Belgian Dark Strong Ale | 9.5% |
| Malvasia Rosso | 3 Fonteinen | Fruit Lambic | 8.0% |
| Mama Bear's Sour Cherry Pie | Crooked Stave Artisan Beer Project | Wild Ale | 7.0% |
| Mama's Little Yella Pils | Oskar Blues Brewery | Bohemian / Czech Pilsner | 5.3% |
| Maman | Perennial Artisan Ales | American Imperial Stout | |
| Maman Brigitte | Quest Brewing Co. | American Imperial Stout | 9.0% |
| Mamma Mia! Pizza Beer | Pizza Beer | Herb and Spice Beer | 4.6% |
| Mammoth | Greenbush Brewing Company | Weizenbock | 8.3% |
| Mammoth Barleywine | HooDoo Brewing | English Barleywine | 10.6% |