| Grumpy Old Time | Westbrook Brewing | Belgian Dark Strong Ale | 11.0% |
| Grumpy Two | Grumpy Troll Restaurant and Brewery | American Stout | |
| Gruner Veltliner | Floodland Brewing | | |
| Grüngeist | Pipeworks Brewing Company | Imperial IPA | 9.5% |
| Grunion | Ballast Point Brewing Company | American Pale Ale | 5.5% |
| Grunsfeld | Ravinia Brewing Company | American Lager | 5.0% |
| Grupa G6+ | Przetwórnia Chmielu | Grodziskie | 2.7% |
| Guardian Dog Doppelbock | Legend Brewing Co. | Doppelbock | 8.0% |
| Guardian of the State Speedway Stout | AleSmith Brewing Company | American Imperial Stout | 13.0% |
| Guardian's Slumber | Stone Brewing | American Barleywine | |
| Guatemalan Bam Bam | Maplewood Brewery | American Brown Ale | 6.3% |
| Guatemalan Coffee Extra Porter | Buxton Brewery | | 7.4% |
| Guatemalan Coffee Stout | Vault Brewing Co | Sweet / Milk Stout | 5.0% |
| Guava | Ace Ciders | | 5.0% |
| Guava Boss Tweed | Old Nation Brewing Company | Imperial IPA | 9.2% |