| OFYMD | Westbrook Brewing / Evil Twin | American Imperial Stout | 12.8% |
| The OG | Magnify Brewing | | |
| OG Barleywine - Bourbon Barrel-Aged | AleSmith Brewing Company | American Barleywine | 11.0% |
| OG Barleywine - Cognac Barrel-Aged | AleSmith Brewing Company | American Barleywine | 10.5% |
| OG Barleywine - Islay Scotch Barrel-Aged | AleSmith Brewing Company | American Barleywine | 11.0% |
| OG Barleywine - Peach Sherry Barrel-Aged | AleSmith Brewing Company | American Barleywine | 10.5% |
| OG Estate | Mikkeller Brewing NYC | American Imperial Stout | 10.0% |
| OG. | 10 Barrel Brewing Co. | American IPA | 6.5% |
| The Ogden | Goose Island Beer Co. | Tripel | 9.0% |
| Ogee | Jackie O's Pub & Brewery | Wild Ale | 6.0% |
| Oggy | Great Notion | English IPA | 7.0% |
| Ogre Batch 2 | 903 Brewers | Sweet / Milk Stout | 15.5% |
| Oh Brother! | Two Brothers Brewing | Tripel | 9.1% |
| oh dude that‘s mint | Orca brau | English IPA | 6.8% |
| Oh Face Saison Provisional | Trinity Brewing Company | Saison | 4.8% |