| Oblivion | Wicked Weed | Wild Ale | 8.5% |
| Oblivion Ring aged in Spanish Brandy barrels | Modern Times | English Barleywine | 13.0% |
| Oblivion Ring: NOLA Coffee Edition | Modern Times | American Barleywine | 11.0% |
| Oblivious 2022 edition | Brouwerij De Moersleutel | New England IPA | 7.0% |
| Obol | DuClaw | | |
| Obolon Lager | Obolon Brewery | European Pale Lager | 5.2% |
| Obovoid Empirical Stout | Boulder Beer Company | American Imperial Stout | 8.0% |
| Obscur Tarocco | Antidoot - Wilde Fermenten | | |
| Obscura | MonsRegius Bières Artisanales | American Porter | 7.2% |
| Obscura | Troubadour | | |
| Obscura Arborea | Telegraph Brewing Company | Flanders Oud Bruin | 9.0% |
| Obscura Aurantium | Telegraph Brewing Company | American Barleywine | 10.0% |
| Obscura Cacao | Telegraph Brewing Company | Herb and Spice Beer | 7.3% |
| Obscura Peche | Telegraph Brewing Company | Wild Ale | 6.0% |
| Obscura Vulpine | Telegraph Brewing Company | Wild Ale | 5.9% |