| Arbetarporter | Oceanbryggeriet | American Porter | 9.0% |
| Arbor Imperial Stout | Redbud Brewing Company | American Imperial Stout | 10.0% |
| Arboreal | Oxbow Brewing Company | Wild Ale | 8.5% |
| Arbre Alligator Char | The Bruery | American Imperial Stout | 11.3% |
| Arbre Light Toast | The Bruery | American Imperial Stout | 11.3% |
| Arbre Medium Toast | The Bruery | American Imperial Stout | 11.3% |
| Arbre Qui Donne | O'so Brewing Company | Wild Ale | 5.9% |
| Arbre Qui Donne | Oso | Wild Ale | 7.0% |
| Arc Weld Alt | Bethlehem Brew Works | Altbier | 5.3% |
| Arcadia 15 | Arcadia Brewing | American Brown Ale | |
| Arcadia ESB | Arcadia Brewing | | |
| Arcana | Brouwerij Hof Ten Dormaal | Saison | 6.5% |
| Arcana | Stillwater Artisanal Ales | | |
| Arcane 17 | Brasserie Auval | American IPA | 5.2% |
| Arcanum | OEC Brewing (Ordinem Ecentrici Coctores) | | 12.0% |