| Magnetic Compass | Grimm Artisanal Ales | American IPA | 6.4% |
| Magnificat | Monkish Brewing Co. | Belgian Dark Strong Ale | 10.1% |
| Magnificat - Bourbon Barrel Aged | Monkish Brewing Co. | Belgian Dark Strong Ale | 12.6% |
| Magnificent Mild | O'Grady's Brewery and Pub #1 | English Pale Mild Ale | |
| Magnificent Seven | Alpine Beer Company | American IPA | 7.7% |
| Magnum (Single Hop Series) | Hermitage Brewing Company | American IPA | 7.0% |
| Magnumus Ete Tomahawkus ESB³ | Rock Art Brewery | Extra Special / Strong Bitter (ESB) | 8.0% |
| Magwitch Barrel Aged IPA | Flossmoor Station Brewery | English IPA | 5.8% |
| The Maharaja | Avery Brewing Company | Imperial IPA | 10.5% |
| Mahogany Ale | Brewery Creek Brewing | American Pale Ale | |
| Mahogany Lush | Jackie O's Pub & Brewery | Wild Ale | 8.0% |
| Mai Tai IPA | Alvardo Street Brewery & Grill | American IPA | |
| MAI-BOCK | Atwater Block Brewing | Bock | 7.5% |
| Maibock | Drake's Brewing Co. | Bock | |
| Maibock | Fort Collins Brewery | | |