| The Order of Things 04 | Hill Farmstead | American Imperial Stout | 14.0% |
| Orderville | Modern Times | American IPA | 6.8% |
| Orderville - Double Dry-Hopped | Modern Times | American IPA | 7.2% |
| Ordinance | To Øl | | 7.8% |
| Oregon Braaaaaaaains | Drekker Brewing Co. | Fruit and Field Beer | 6.9% |
| Oregon Fruit Series: Flat White Cherries | Mikkeller | Sweet / Milk Stout | 7.5% |
| Oregon Golden Ale | Rogue Ales | American Blonde Ale | |
| Oregon Native | Upright Brewing Company | Wild Ale | 8.0% |
| Oregon Sunrise | Alesong | | 9.5% |
| Orenda Volume 2 | Pollyanna | Quadrupel (Quad) | 9.3% |
| Orenda Volume 3 | Pollyanna | Tripel | 11.0% |
| Orenji | OEC Brewing (Ordinem Ecentrici Coctores) | Wild Ale | |
| Oreo Borealis | Magnify Brewing | | |
| Oreo Speed Wagon | Lake Time Brwery | | 5.6% |
| Oreo Speedwagon | Hitchhiker Brewing Company | | 10.5% |