| Marco the Third | Ras l'Bock | New England IPA | 4.2% |
| Mardi Gras Bock | Abita Brewing Company | Bock | 6.5% |
| Marea Roja | Cismontane Brewing | Flanders Red Ale | 4.4% |
| Mareddsous Blonde | Brouwerij Duvel Moortgat | | |
| Maredsous 10 - Triple | Abbaye de Maredsous | Tripel | 10.0% |
| Maredsous 10 Tripple | Brouwerij Duvel Moortgat | Tripel | 10.0% |
| Maredsous 6 Blonde | Abbaye de Maredsous | | 6.0% |
| Maredsous 8 Brune | Brouwerij Duvel Moortgat | Dubbel | 8.0% |
| Maredsous Blonde | Brouwerij Duvel Moortgat | Belgian Blonde Ale | 6.0% |
| Maredsous Brune 8 | Abbaye de Maredsous | Dubbel | 8.0% |
| Mares in a Jam | Small Pony Barrel Works inc. | | 7.7% |
| Mares in the Night | Small Pony Barrel Works inc. | Wild Ale | 8.5% |
| Margaret Maggie | Fidens | Imperial IPA | 8.1% |
| Margarete | Avery Brewing Company | American Imperial Stout | 15.4% |
| Margarita Gose | Westbrook Brewing | Gose | 4.5% |