| Old Ruffian | Great Divide Brewing Company | American Barleywine | 10.2% |
| Old Rumskull | AleSmith Brewing Company | American Barleywine | 12.0% |
| Old Sage Brett | Epic Brewing Company | | 7.6% |
| Old Saint Chango | Bear Republic Brewery | Winter Warmer | 7.2% |
| Old Salt IPA | Cascade Brewing | American IPA | 5.8% |
| Old Salty | Heavyweight Brewing | | |
| Old School | Noctem Artisans Brasseurs | American IPA | 7.0% |
| Old School Hawaii Vibes | Hop Butcher for the World | Imperial IPA | 7.5% |
| The Old School the New | Garden Path Fermentation | American IPA | 7.2% |
| Old Scoundrel | Sound Brewery | English Barleywine | 10.4% |
| Old Scratch Barleywine 1997 | Great Dane Pub and Brewing | | |
| Old Scratch Lager | Flying Dog Brewery | American Amber / Red Ale | 5.5% |
| Old Scrooge Christmas Ale | Silver City Brewing Co. | | |
| Old Seattle Lager | Maritime Pacific Brewing | American Lager | 4.3% |
| Old Serenade | Birrificio Toccalmatto | Old Ale | 11.3% |