| Under Crown | 18th Street Brewery | | |
| Under My Plum | MadTree | American Barleywine | 11.9% |
| Under Pressure | 7venth Sun Brewery | Saison | |
| Under Pressure | Sneaky Snake Brewery | Wild Ale | |
| Under the Kilt | Dragonmead Microbrewery | Scotch Ale / Wee Heavy | 7.8% |
| Underbar Jul | Electric Nurse | English Porter | 4.2% |
| Undercover Investigation Shut-Down Ale | Lagunitas Brewing Company | American Pale Ale | 9.3% |
| Underdark | Intuition Ale Works | American Imperial Stout | 9.5% |
| UnderDog Atlantic Lager | Flying Dog Brewery | American Lager | 4.7% |
| Underground IPA | Stout Brothers Public House | American IPA | |
| Underlig Jul | Nøgne Ø | Herb and Spice Beer | 6.5% |
| underlig jul | Nøgne Ø - Det Kompromissløse Bryggeri A/S | Herb and Spice Beer | 6.5% |
| Undertaker | Brewery Vivant | Belgian Dark Strong Ale | 5.0% |
| Undressed | Alvinne Picobrouwerij | Flanders Oud Bruin | 6.9% |
| undressed megablend - barrel aged | Alvinne Picobrouwerij | Flanders Oud Bruin | 6.9% |