| Old Backus Barleywine Ale | Free State Brewing | American Barleywine | 10.0% |
| Old Barrel Dweller | Driftwood Brewery | | 11.8% |
| Old Bastard | Great Waters Brewing Company | Old Ale | |
| Old Bat Rastard | Freetail Brewing Co. | Winter Warmer | 9.1% |
| Old Bawdy | The Pike Brewing Co. | English Barleywine | 10.0% |
| Old Bawdy 2006 | Pike Pub and Brewery | | 10.0% |
| Old Bayard | Tahoe Mountain Brewing Co. | | 7.0% |
| Old Believer Aged in Bourbon Barrels | Torn Label Brewing Co. | American Imperial Stout | 12.1% |
| Old Bendmaster | American Solera | American Barleywine | 13.0% |
| Old Birdbrain | Black Raven Brewing Co. | American Barleywine | 10.9% |
| Old Blaggard | Summit Brewing | English Barleywine | 10.1% |
| Old Blarney Barleywine | Moylan's Brewery & Restaurant | | 10.0% |
| Old Blarney Barleywine Buffalo Trace Barrel Aged | Moylan's Brewery & Restaurant | American Barleywine | 10.0% |
| Old Boardhead 2011 | Full Sail Brewing | American Barleywine | 9.0% |
| Old Boardhead Barleywine Ale | Alaskan Brewing Co. | American Barleywine | |