| Letter of Marque 2012 | Clipper City Brewing Co. | Tripel | |
| Letter of the Marque | Heavy Seas Beer | Tripel | 8.0% |
| Lettre Rouge | Powder Keg Brewing Company | Wild Ale | 6.7% |
| Let’s Do Brunch | Foundation Brewing Co. | Sweet / Milk Stout | 6.3% |
| Leute Bok Bier | Brouwerij Van Steenberge N.V. | Bock | 7.5% |
| Lev Lion Pale Double Bock | Měšťanský pivovar Havlíčkův Brod a.s. | European Pale Lager | 5.1% |
| Level Sun | G5 | Imperial IPA | 10.0% |
| Level Thirteen | Funkwerks | Belgian Pale Strong Ale | 13.4% |
| Leviathan - Baltic Porter | Harpoon Brewery - Boston | Baltic Porter | 9.5% |
| Leviathan - Red Squared | Harpoon Brewery - Boston | | |
| Leviathan - Uber Bock | Harpoon Brewery - Boston | | |
| Leviathan Great Scott | Harpoon Brewery - Boston | | |
| Levitation Ale | Stone Brewing | American Amber / Red Ale | 4.4% |
| Levity Amber Ale | Odell Brewing | American Amber / Red Ale | 5.1% |
| Levon | Omnipollo | Belgian Pale Ale | |