| Islander Pale Ale | Maritime Pacific Brewing | American Pale Ale | 5.0% |
| Islandic Toasted Porter | Einstok | American Porter | |
| Isle Of MaGourdo | Due South | | |
| Isolation Ale | Odell Brewing | Winter Warmer | 6.0% |
| Issaquah Bullfrog Ale | Rogue Ales | American Pale Wheat Beer | |
| Isseki Nicho | Brasserie Dieu du Ciel | Saison | 9.5% |
| Isseki Nicho (fut de pinot noir) | Brasserie Dieu du Ciel | | |
| iStout | 8 Wired Brewing Co. | Russian Imperial Stout | 10.0% |
| It Puts The Cucumber On Its Skin Or It Gets The Gose Again! | 7venth Sun Brewery | Gose | 3.6% |
| It Takes a Lot of Great Beer to Make Great Wine | Russian River Brewing Company | | 4.8% |
| It Was a Dark and Stormy Night | McKenzie Brew House | Wild Ale | 10.5% |
| It's Alive | Mikkeller | Belgian Pale Strong Ale | 8.0% |
| It's Alive (Aged in Grand Marnier Liqueur Barrels) | Mikkeller | Wild Ale | 8.0% |
| It's Alive (Aged in White Wine Barrels) | Mikkeller | Belgian Pale Strong Ale | 8.0% |
| It's Alive White Wine Barrel Aged (Lychee edition) | Mikkeller | Wild Ale | 8.0% |