| Overcast Espresso Stout | Oakshire Brewing | American Stout | 5.8% |
| Overdressed Flamingos | Urban Family Brewing | American IPA | 6.4% |
| Overgolded | Saint Errant | New England IPA | 7.5% |
| Overhang (Alta Series) Porter | Two Beers Brewing Co. | American Porter | 12.9% |
| Overhaze | Marz Community Brewing | New England IPA | 6.8% |
| Overhead | Kane Brewing Company | Imperial IPA | 8.2% |
| Overloaded | Amundsen Brewery | | 11.5% |
| Overlord Imperial IPA | Tin Man Brewing | | 9.2% |
| Overlord's Dictation | Mikkeller | American Imperial Stout | 12.0% |
| Overly Friendly IPA | Holy City Brewing | | |
| Overly Prompt | Adventurous Brewing | Imperial IPA | 12.5% |
| Overnight Celebrity | Monday Night Brewing | Imperial Porter | 11.5% |
| Override | Nerdbrewing | American Imperial Stout | 10.8% |
| Overstory - Dessert Reserve | Single Hill Brewing | American Imperial Stout | 11.1% |
| Ovila Abbey Quad w/ Cherries | Sierra Nevada Brewing Co. | Quadrupel (Quad) | 9.2% |