| IPX (Simcoe Hops) | Hopworks Urban Brewery | American IPA | 6.0% |
| IRA | Cascade Lakes Brewing Co. | | 6.8% |
| IREALLYdontwanttoBU! | The Veil Brewing Company | American IPA | 6.9% |
| Irene | Perennial Artisan Ales / Side Project | Belgian Dark Strong Ale | 9.0% |
| Iridescent | Upland Brewing | Wild Ale | 6.0% |
| Iridium Flare | Bottle Logic | Braggot | 13.0% |
| Irie | Tighthead Brewing Company | English IPA | 7.8% |
| Iris | Brasserie Cantillon | Lambic | 5.0% |
| Iris & Roseau | Gueuzerie Tilquin | | |
| Irish | Menaud Distrillerie & Brasserie | Irish Red Ale | 4.5% |
| Irish Ale | Egan Brewing | English Pale Mild Ale | |
| Irish Amber | FINNEGANS | Irish Red Ale | 4.6% |
| Irish Blessing | Boulder Beer Company | American Stout | 6.8% |
| Irish Buh-Bye Wake-N-Bake | Terrapin Beer Company | American Imperial Stout | 9.4% |
| Irish Channel Stout | NOLA Brewing Company | American Stout | 6.8% |