| Over-The-Rhine Ale | Christian Moerlein Brewing Company | American Pale Ale | 6.0% |
| Over/Under Lager Aged with Mulberry Wood | Listermann Brewing Company | American Amber / Red Lager | 6.2% |
| Overall | To Øl | Imperial IPA | 10.5% |
| Overboard | Pips Meadery | Fruit and Field Beer | 14.0% |
| Overboard | Port Jeff Brewing Company | | |
| Overcast Ale | Roffey Brewery | American Pale Ale | |
| Overcast Espresso Stout | Oakshire Brewing | American Stout | 5.8% |
| Overcoil | Jackie O's Pub & Brewery | American Imperial Stout | 12.9% |
| Overdressed Flamingos | Urban Family Brewing | American IPA | 6.4% |
| Overflow | Charles Towne Fermentory | New England IPA | 7.1% |
| 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% |