| Magnum (Single Hop Series) | Hermitage Brewing Company | American IPA | 7.0% |
| Magnum Opus | Grimbergen | Bière de Champagne / Bière Brut | 8.0% |
| Magnum Peach Inferno | Crafted Artisan Meadery | | 6.0% |
| Magnum Trux (Mysterium Verum) | Real Ale Brewing Company | | |
| Magnumus Ete Tomahawkus ESB³ | Rock Art Brewery | Extra Special / Strong Bitter (ESB) | 8.0% |
| Magritte (Unfiltered) | Brouwerij Duvel Moortgat | Belgian Pale Strong Ale | 8.5% |
| Magwitch Barrel Aged IPA | Flossmoor Station Brewery | English IPA | 5.8% |
| Magðalena Imperial Wit Nr.41 | Borg Brugghús | | 8.4% |
| Mahalo Parfait Framboise | Brasserie Dunham | Fruit and Field Beer | 4.5% |
| Mahalo Parfait Papaye | Brasserie Dunham | Fruit and Field Beer | 4.5% |
| The Maharaja | Avery Brewing Company | Imperial IPA | 10.5% |
| Mahina | Lanikai | American Barleywine | 12.0% |
| Mahogany & Tweed | Burlington Beer Company | English Barleywine | 11.0% |
| Mahogany & Tweed (2022) | Burlington Beer Company | American Barleywine | 12.0% |
| Mahogany Ale | Brewery Creek Brewing | American Pale Ale | |