| OWA Medianoche | Weldwerks | American Imperial Stout | 14.0% |
| OWD Mac's - Templeton Barrel Aged | Free State Brewing | Russian Imperial Stout | 12.1% |
| Owd Rodger | Marston's | English Strong Ale | |
| Owen | Perennial Artisan Ales | Saison | 4.7% |
| Owl Bundy | Brouwerij het Uiltje | New England IPA | 8.2% |
| Owls first hoot | Horus Aged Ales | American Stout | 15.5% |
| Own Worst Enemy | Mikerphone | Sweet / Milk Stout | 9.3% |
| Owyhee Canyonlands | Base Camp Brewing Company | Wild Ale | 5.6% |
| The Ox | Holy Mountain | | |
| The Ox & The Toad | Mad Fritz | Altbier | 5.5% |
| Oxaal 2022 | Pellicle Vergistingen | | |
| Oxaal: Kriek 2022 | Pellicle Vergistingen | | |
| Oxalis Pes Caprae Sour Blonde Ale | Cismontane Brewing | Wild Ale | 4.5% |
| Oxcart | Black Project Spontaneous & Wild Ales | Wild Ale | |
| Oxford | Claremont Craft Ales | Russian Imperial Stout | 13.0% |