| Oude Tart With Raspberries | The Bruery | Wild Ale | 7.7% |
| Oude Tart with Raspberries | Bruery Terreux | Flanders Red Ale | |
| Oude Tart With Sour Cherries | The Bruery | Wild Ale | 7.5% |
| Oude Testament | The Lost Abbey | Wild Ale | 9.5% |
| Oude Timey | White Birch Brewing | | |
| Oude Trois Sour Saison | Hi-Wire | Saison | 6.6% |
| Oude Vieux Lambiek | Brouwerij Oud Beersel | | |
| Oudenaarde Imperial Sour Ale | Brouwerij Smisje | Dubbel | 12.0% |
| Oudilis Blend 3 | OEC Brewing (Ordinem Ecentrici Coctores) | | |
| Oudilis Cerasus | OEC Brewing (Ordinem Ecentrici Coctores) | | |
| Oudilis Cerasus Blend 2 | OEC Brewing (Ordinem Ecentrici Coctores) | | |
| Oudilis Fragaria blend 1 | OEC Brewing (Ordinem Ecentrici Coctores) | | |
| Oudilis Peche | OEC Brewing (Ordinem Ecentrici Coctores) | Fruit Lambic | 6.2% |
| Oudste | Tommie Sjef Wild Ales | | |
| Oui, Chef | Breakside Brewery | Saison | 5.0% |