| Off The Grid | Jekyll Brewing | English Barleywine | 10.8% |
| Off The Rail Pale Ale | Blue Cat Brew Pub | American Pale Ale | |
| Off The Wall - Velo-City | York Brewery | English Pale Ale | 4.5% |
| OG. | 10 Barrel Brewing Co. | American IPA | 6.5% |
| The Ogden | Goose Island Beer Co. | Tripel | 9.0% |
| Oh Brother! | Two Brothers Brewing | Tripel | 9.1% |
| Oh Face Saison Provisional | Trinity Brewing Company | Saison | 4.8% |
| Oh me so hoppy to wheat you | Odd Side Ales | | |
| Oh Snap! | Kuhnhenn Brewing | | 14.0% |
| OH-PA Session Pale Ale | Rivertowne Pour House | American Pale Ale | 4.8% |
| Ohio City Oatmeal Stout | Great Lakes Brewing | American Stout | 4.8% |
| Ohio Unidragon | Clown Shoes | Russian Imperial Stout | 11.5% |
| Ohrwal | Huisstekerij h.ertie | Gueuze | 6.5% |
| Oil Can Stout | Sanford's Grub and Pub | American Stout | |
| Oil Change Oatmeal Stout | Flat Branch Pub & Brewing | Oatmeal Stout | |