| Mountain Wheat | Breckenridge Brewery | American Lager | |
| Mountaineer Maibock | Barley Creek Brewing | Maibock | |
| The Mountie | Sawdust City Brewing Company | Bière de Garde | 8.0% |
| Moustache Ride Red | Flat 12 Bierworks | American Amber / Red Ale | 6.0% |
| Mout & Mocca | Brouwerij De Molen | American Stout | 9.5% |
| Mout & Mocca Bourbon BA | Brouwerij De Molen | Russian Imperial Stout | 11.6% |
| Moveable Type | Foundation Brewing Co. | | |
| Movembeer | Imperial Oak Brewing | American Imperial Stout | 9.0% |
| Movembeer | Pollyanna | American Imperial Stout | 9.0% |
| Movin' On | Swamp Head Brewery | Flanders Oud Bruin | 8.9% |
| Moving Parts The Ever Evolving IPA: Batch No. 2 | Victory Brewing | English IPA | 6.4% |
| Moving Parts The Ever Evolving IPA: Batch No. 3 | Victory Brewing | Belgian IPA | 6.6% |
| Moylander Double IPA | Moylan's Brewery & Restaurant | Imperial IPA | 8.5% |
| Moylannium Ale | Moylan's Brewery & Restaurant | | |
| Moylans Hopsickle Imperial Ale | Moylan's Brewery & Restaurant | Imperial IPA | 9.2% |