| Mastermind | Sideswipe Brewing | American Imperial Stout | 11.0% |
| Masterpiece - Cognac | FiftyFifty Brewing Co. | American Imperial Stout | 12.5% |
| Masterpiece Porter | Stone Cellar Brewpub & Restaurant | American Porter | |
| Mastodon | Rhinegeist Brewery | Belgian Dark Strong Ale | 9.8% |
| Mastodon Mother Puncher | Mikkeller | American IPA | 6.6% |
| The Matador | Flying Monkeys Craft Brewery | Imperial IPA | 10.0% |
| Matador 2.0 El Toro Bravo | Flying Monkeys Brewing Co. | | |
| Matame Ahorita | Jolly Pumpkin Artisan Ales | Gose | 5.5% |
| Matcha Super Green Yuzu IPA | Red Brick Brewing Company | Imperial IPA | 7.8% |
| Mathias Dahlgren - Oktoberfest | S:t Eriks Bryggeri | European Pale Lager | 5.3% |
| Matilda | Goose Island Beer Co. | Belgian Pale Strong Ale | 7.0% |
| Matilda | Goose Island Beer Company - Fulton Street | | 7.0% |
| Matölen | Evil twin / Mathias Dahlgren | American Porter | 6.5% |
| Matrimonium | Monkish Brewing Co. | | 11.1% |
| Matt | Hair of the Dog Brewing Company | American Strong Ale | 11.5% |