| Xtra-Citra Pale Ale | Surly Brewing Co. | American Pale Ale | 4.5% |
| Xtradubl Benthic | Half Acre Beer Company | American Imperial Stout | 13.5% |
| Xtreem Stout | Bierbrouwerij de Eem | | 7.5% |
| XV | Arcadia Brewing | | |
| XV (√225 Saison) | Brasserie des Franches-Montagnes | Saison | 5.0% |
| XV Anniversary Stout | Jackie O's Pub & Brewery | American Imperial Stout | 13.7% |
| XVIII - Anniversary Ale | Firestone Walker Brewing Co. | American Strong Ale | 13.0% |
| XVIII Anniversaire | Saint-Arnould | Doppelbock | 8.2% |
| XX | Central Waters Brewing Company | American Imperial Stout | 13.5% |
| XX Bitch Creek | Grand Teton Brewing Co. | Extra Special / Strong Bitter (ESB) | 7.5% |
| XX Bitter | Brouwerij De Ranke | | 6.0% |
| XX Black Angus Stout | Little Apple Brewing | American Stout | |
| XX Chocolate Maple Porter | Stone Corral | American Porter | 8.0% |
| XXA | Bier Factory | English IPA | 6.7% |
| XXI | Central Waters Brewing Company | American Imperial Stout | |