| Old Conundrum On Wood | FiftyFifty Brewing Co. | American Barleywine | 9.8% |
| Old Corrosive Barleywine Ale | Jellyfish | English Barleywine | 14.0% |
| Old Corrosive Barleywine Ale - Port Barrel Finish | Jellyfish | American Barleywine | 14.3% |
| Old Court Ale | 16 Mile Brewing Company | American Pale Ale | 6.1% |
| Old Courthouse Stout | Trailhead Brewing Company | American Stout | |
| Old Crafty Hen | Greene King | Old Ale | 6.5% |
| Old Crafty Hen | Morland and Co. | English Strong Ale | |
| Old Crustacean Barleywine | Rogue Ales | American Barleywine | 11.5% |
| Old Curmudgeon | Founders Brewing | Old Ale | 9.8% |
| Old Dark Mild | Mills Brewing | Wild Ale | 7.5% |
| Old Davenport Gold | Front Street Brewery | American Pale Ale | |
| The Old Deer and Fawn | Mad Fritz | Winter Warmer | 7.3% |
| Old Detroit | Frankenmuth Brewery | American Amber / Red Ale | |
| Old Devil | Wychwood Brewery Company Ltd | English Pale Mild Ale | |
| Old Devil's Tooth | Sockeye | American Barleywine | |