| Iron Furnance | Jackie O's Pub & Brewery | Baltic Porter | 11.2% |
| Iron Garde | Idle Hands | Bière de Garde | 6.0% |
| Iron Hill Belgian Tripel | Iron Hill Brewery - Wilmingon | | 9.5% |
| Iron Horse | Small Pony Barrel Works inc. | Wild Ale | 6.6% |
| iron horse IPA | Iron Horse Brewery | American IPA | 6.0% |
| Iron Horse Oatmeal Stout | Carver Brewing Co. | Oatmeal Stout | |
| Iron Horse Stout | Red Star Brewery & Grille | American Stout | |
| iron jaw | The Veil Brewing Company | | |
| Iron Joe | Rahr & Sons Brewing Company | Scotch Ale / Wee Heavy | 8.0% |
| Iron Lady | Wicked Weed | Black IPA | 9.5% |
| Iron Lion | Stone City Ales | Foreign / Export Stout | 8.7% |
| Iron Maiden Trooper | Frederic Robinson Ltd. | Extra Special / Strong Bitter (ESB) | 4.7% |
| Iron Maiden Trooper | robinsons family brewers | Extra Special / Strong Bitter (ESB) | 4.7% |
| Iron Mike Pale Ale | Moat Mountain Smoke House & Brewing Co | American Pale Ale | 5.6% |
| Iron Mine Pale Ale | Top of the Hill Restaurant and Brewery | American Pale Ale | |