| Grains of Truth | Brewery Ommegang | | 5.8% |
| Grainstorm Black Rye I.P.A. | Boulevard Brewing Company | Black IPA | 7.7% |
| Gram Positive | Speciation Artisan Ales | Wild Ale | 7.5% |
| Gramarye | Heretic Brewing Company | | |
| Gramma | Rhinegeist Brewery | Oatmeal Stout | 6.0% |
| Gramps | Rhinegeist Brewery | American Barleywine | 8.2% |
| Grampus | Pretty Things Beer & Ale Project | | 10.5% |
| Gran Cru | Blue Moon Brewing Co. | Witbier | 8.2% |
| Gran Gianduiotto | Levante brewing | American Imperial Stout | 11.0% |
| Gran Met | Voodoo Brewing Co.,LLC | Belgian Pale Strong Ale | 10.5% |
| Gran Met (Port Barrel Aged) | Voodoo Brewing Co.,LLC | Tripel | 9.5% |
| Gran Met - Apple Brandy (33 Months) | Voodoo Brewing Co.,LLC | Tripel | 9.5% |
| Gran Met Laird's Apple Brandy Barrel | Voodoo Brewing Co.,LLC | Tripel | 9.5% |
| Gran Missionario | 5 Rabbit Cerveceria | | 7.8% |
| Gran Riserva Rossa | Birra Peroni Industriale S.p.A. | European Dark Lager | 5.2% |