| Mendelian Inheritance | Speciation Artisan Ales | | 7.4% |
| Mendelian Vacation | Speciation Artisan Ales | | 8.0% |
| Mendhi (2024) | More Brewing Company | American Imperial Stout | 15.5% |
| Mendocino Black IPA | Mendocino Brewing - Saratoga Springs | Black IPA | 6.0% |
| Meneer de Uil - Auchentoshan BA | Brouwerij het Uiltje | Russian Imperial Stout | 12.2% |
| Meneer de Uil - Glen Garioch BA | Brouwerij het Uiltje | Russian Imperial Stout | 12.2% |
| Meneer de Uil - Wardhead BA | Brouwerij het Uiltje | | 11.4% |
| Mental Freeze | Mikerphone | American Pale Ale | 5.0% |
| Menu Pineau | Brasserie Cantillon | | |
| Menuet | fox farm brewing | Wild Ale | 3.8% |
| Meowsa! | Georgetown Brewing | Imperial IPA | 8.1% |
| Meowsonry! | Jester King Craft Brewery | | 5.3% |
| Meowzah | Jester King Craft Brewery | Wild Ale | |
| Mephistopheles Stout | Avery Brewing Company | American Imperial Stout | 16.0% |
| Mephistopheles Stout 2014 | Avery Brewing Company | Russian Imperial Stout | 17.1% |