| Maximus IPA | Lagunitas Brewing Company | | |
| Maxlrainer Leo Weisse | Schlossbrauerei Maxlrain GmbH & Co. KG | Hefeweizen | 5.0% |
| May IPA | Moustache Brewing Co. | American IPA | 6.9% |
| May The Schwarz Bier With You 2015 | Smazinheira Brewing | Schwarzbier | 5.5% |
| Mayahuel | Coachella Valley Brewing Co. | Tripel | 14.0% |
| The Mayan | The Ilkley Brewery | English Stout | 6.5% |
| Mayan Apocalypse Judgment Day | The Lost Abbey | Belgian Dark Strong Ale | 10.5% |
| Mayan Mocha | Odd Side Ales | American Stout | 6.0% |
| Mayan Mocha Stout | Oddside Ales | American Stout | 6.0% |
| Maybe Ghosts | Woodland Empire | Saison | 5.6% |
| Maybe Next Year | Begyle Brewing Company | American Brown Ale | 9.0% |
| Maybelle | The Commons Brewery | Saison | |
| Mayflower Barley Wine | Mayflower Brewing Company | English Barleywine | 10.5% |
| Mayflower IPA | Mayflower Brewing Company | American IPA | 7.0% |
| Mayflower Thanksgiving Ale | Mayflower Brewing Company | English Strong Ale | 8.0% |