| Atwater Grand Circus IPA | Atwater Brewery | American IPA | 4.2% |
| AU Jus | Vitamin Sea | New England IPA | 7.6% |
| Au Ra | Intangible Ales | Saison | 4.5% |
| Au Revoir | Heavy Reel Brewing Company | German Pilsner | 4.8% |
| Au Revoir | Side Project | Saison | 6.0% |
| Aubel Double | Brasserie Grain D'Orge | Dubbel | 6.1% |
| Aubergine | Kelly Green | | |
| Aubree | The Libertine Brewing Company | Saison | 6.0% |
| Auburn | Mad Anthony Brewing | American Pale Ale | |
| Auburn Ale | Cameron's Brewing | American Amber / Red Ale | 5.0% |
| Auburn Ale | Jacob Leinenkugel Brewing Company | American Amber / Red Ale | |
| Auckland Pale | Nailmaker | English Pale Ale | |
| Aud Blonde | Russian River Brewing Company | American Blonde Ale | 4.5% |
| Audace | 32 Via dei Birrai | Belgian Pale Strong Ale | 8.4% |
| Audaciter | Trader Joe's Brewing Company | Belgian Pale Ale | 7.5% |