| Beer | Brewery | Style | ABV |
|---|---|---|---|
| The Obscure | Green Bench Brewing | English Barleywine | 10.2% |
| Obscure | Pips Meadery | ||
| Obscured by Clouds | Culmination Brewing | Imperial IPA | 8.4% |
| Obscuritas | Driftwood Brewery | Wild Ale | 7.6% |
| Obscurite | Ithaca Beer Company | Belgian Dark Strong Ale | 10.0% |
| Obscuro & Nimbosus | Avery Brewing Company | Wild Ale | 8.1% |
| The Observer | TrimTab Brewery | New England IPA | 8.0% |
| Observing Reason | Trillium | American Imperial Stout | 13.9% |
| Observing Reason | Trillium / Bottle Logic | American Imperial Stout | 13.9% |
| Observing Reason (Barrel Aged) | Trillium / Bottle Logic | American Imperial Stout | 15.7% |
| Obsessive Stout | Orange County Brewing @ Brown Barn Farms | American Imperial Stout | 10.5% |
| Obsidian | Cameron's Brewing | 9.2% | |
| Obsidian | Crossover Blendery | 6.5% | |
| Obsidian | Honey Pot Meadery | 13.0% | |
| Obsidian Rum Barrel | Camerons Brewery Company |