| Multiflora | Decadent Ales | Imperial IPA | 9.6% |
| Multiple Ectogasms | Drekker Brewing Co. | American IPA | 7.0% |
| Multiple Infinities Mexican Chocolate Stout | Artisanal Brew Works | | 9.0% |
| Multiplicity | Little Beast Brewing | Flanders Oud Bruin | 7.5% |
| Multitrack | Brewdog Ltd / Bearded Iris | Imperial IPA | |
| Multiverse Bourbon Barrel Aged | Kent Falls Brewing Company | American Imperial Stout | 9.7% |
| Mumbai Rye | Good People Brewing Co | Rye Beer | 6.6% |
| Munch Blaster 420 | Invasive Species Brewing | American Imperial Stout | 11.0% |
| Münchner Hell / Premium Lager | Spaten-Franziskaner-Bräu | American Lager | 5.2% |
| Münchner Kellerbier | Hacker-Pschorr Bru | Kellerbier / Zwickelbier | 5.5% |
| Münchner Kindl Weissbier / Münchner Weisse | Staatliches Hofbräuhaus in München | Hefeweizen | |
| Mundo Loco | Mad Swede Brewing Company | American Adjunct Lager | 4.6% |
| Mundofolbick | Dunedin Brewery | American Imperial Stout | 9.7% |
| Mundus | Muckraker Beermaker | | |
| Munich Dunkel | Bricktown Brewery | | |