| Undrinkable | Buzzards Bay Brewing Inc. | Wild Ale | |
| Unearthly Imperial India Pale Ale | Southern Tier Brewing Co | Imperial IPA | 11.0% |
| Unfiltered Double Simcoe IPA | Weyerbacher Brewing Company | Imperial IPA | 9.0% |
| Unfiltered Wheat | Springfield Brewing | Hefeweizen | |
| Unfiltered Wheat Beer | Sierra Nevada Brewing Co. | American Pale Wheat Beer | 4.4% |
| Unfiltered Wheat Sour Ale | Three Barrel Brewing Company | Wild Ale | |
| UnForbidden Red Ale | WTP Brewing | Irish Red Ale | 7.9% |
| The Unforgiven Amber Ale | Rush River Brewing | American Amber / Red Ale | 5.8% |
| Ungespundet Lager Hefetrub | Bamberger Mahr's-Bru | | 5.2% |
| Ungespundetes | Brauerei Spezial | | |
| Unholy | Coppertail Brewing Company | Tripel | 9.0% |
| UnHoly Mole | Lake Effect Brewing Company | | |
| Unholy Trippel | Coppertail brewing | Tripel | 9.0% |
| Unibroue 11 | Unibroue | Belgian Pale Strong Ale | 11.0% |
| Unibroue 17 Grande Reserve | Unibroue | Belgian Dark Strong Ale | 10.0% |