| Old Cedar | The Livery | | 7.0% |
| Old Cellar Dweller | Driftwood Brewery | American Barleywine | 14.0% |
| Old Chub | Oskar Blues Brewery | Scotch Ale / Wee Heavy | 8.0% |
| Old Chub Nitro | Oskar Blues Brewery | Scotch Ale / Wee Heavy | 8.0% |
| Old Colonel Davenport Barrel Aged Honey Mead | Bootleg Hill Honey Meads | | 14.0% |
| 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% |