| Macchiato Espresso Milk Stout | Abita Brewing Company | Sweet / Milk Stout | 6.0% |
| MacDougal's | Odd Side Ales | Scotch Ale / Wee Heavy | 10.5% |
| Macedemics | Equilibrium Brewery | | |
| Maceo | Green Man Brewery | | 8.6% |
| MacFannybaw | Against The Grain Brewery & Smokehouse | Rauchbier | 8.5% |
| Mach 10 | Bear Republic Brewery | Imperial IPA | 9.2% |
| Mach Limit: Cab Sauv | Black Project Spontaneous & Wild Ales | Wild Ale | |
| Mach Limit: Tempranillo | Black Project Spontaneous & Wild Ales | Wild Ale | |
| Mach-Limit | Black Project Spontaneous & Wild Ales | | |
| Mach-Limit Bourbon BA | Black Project Spontaneous & Wild Ales | Wild Ale | 11.0% |
| Macha | Brasserie Philippe | Belgian Pale Ale | 6.0% |
| MacHayden's Wee Heavy | Blue Mountain Brewery | | |
| Machine | Bunker Brewing | Bohemian / Czech Pilsner | 5.2% |
| Machine Convene | Cellarmaker Brewing Co. | English Barleywine | 14.1% |
| Mack Opus | Round Corner Brewing | American Brown Ale | 4.5% |