Yes, pure, distilled liquor, even if made from wheat, barley, or rye, is considered gluten-free. Most liquors are safe for people with celiac disease because of the distillation process. However, be on the lookout for hidden gluten in liquors that add flavorings or other additives after distillation. There is also a risk for gluten cross-contamination in facilities that process products containing wheat, barley, or rye. Read more at Answers from a Dietitian.
For more on the distillation process and the safety of liquors for those with celiac disease, as well as gluten-free alcohol labeling information, check out this helpful PDF from the Gluten-Free Certification Program.
A Note on Beer
Beer is fermented, not distilled, so it goes through a different creation process. Regular beer is made with barley and is not safe for people with celiac disease. We don’t know yet if “gluten-removed” barley-based beers are safe for people with celiac disease. That’s because the testing method used has not yet been validated. Until we know more, Beyond Celiac advises avoiding barley-based beers. Luckily, there are plenty of safe gluten-free beers on the market! Get more information on “gluten-removed” beer here.