| Inner Space - Weller | Barreled Souls | | |
| The Innermost Chamber | Floodland Brewing | | |
| Innis & Gunn Original | Innis & Gunn | | 6.6% |
| Innkeeper Barleywine | Man Skirt Brewing | English Barleywine | 9.2% |
| Innocent Criminal | Mikerphone | American Imperial Stout | 11.0% |
| Innocent Criminal - Blackberry | Mikerphone | American Imperial Stout | |
| Innovator Man | Jolly Pumpkin Artisan Ales | Wild Ale | 6.8% |
| Innsmouth Old Ale | The Narragansett Brewing Company | Old Ale | 7.0% |
| Inoculator | 3 Sons Brewing Co | Doppelbock | 6.9% |
| Inosculation | Holy Mountain | American Imperial Stout | 13.5% |
| Inquitous | Baerlic | American Stout | 8.5% |
| Insalata | Muckraker Beermaker | | |
| Insane In The Grain | Cypress Brewing Company | Imperial IPA | 8.3% |
| Insane In the Grain (Spelt) | To Øl | New England IPA | 7.2% |
| Insane in the Membrane | Brouwerij Frontaal | English IPA | 5.5% |