| Ol' Rugger Variant #2 | Zaftig Brewing Co | American Imperial Stout | 17.0% |
| Ol' Rugger with Coconut and Cocoa Nib | Zaftig Brewing Co | American Imperial Stout | |
| Ol' Rugger with Vanilla and Cocoa Nib | Zaftig Brewing Co | Russian Imperial Stout | |
| Ola Dubh 10th Anniversary | Harviestoun Brewery | Old Ale | 8.0% |
| Ola Dubh 1991 | Harviestoun Brewery | Old Ale | 10.5% |
| Ola Dubh Special Reserve 12 | Harviestoun Brewery | Old Ale | 8.0% |
| Ola Dubh Special Reserve 16 | Harviestoun Brewery | Old Ale | 8.0% |
| Ola Dubh Special Reserve 18 | Harviestoun Brewery | Old Ale | 8.0% |
| Ola Dubh Special Reserve 21 | Harviestoun Brewery | Old Ale | 10.5% |
| Ola Dubh Special Reserve 30 | Harviestoun Brewery | Old Ale | 8.0% |
| Ola Dubh Special Reserve 30th Anniversary | Harviestoun Brewery | | |
| Ola Dubh Special Reserve 40 | Harviestoun Brewery | Old Ale | 8.0% |
| Olaf The Stout | Hammerheart | | |
| Olas Especiales | Jolly Pumpkin Artisan Ales | Wild Ale | 5.8% |
| Olasz | Tommie Sjef Wild Ales | | |