Yes, there is gluten-free beer. Beers made from gluten-free grains are considered to be gluten-free and can be labeled gluten free.
Beers fermented from gluten-containing wheat and barley then processed to remove gluten can not be labeled gluten free and are not widely accepted on the gluten-free diet.
It’s easy to confuse the two because they are often sold side-by-side. Look for a gluten-free label.
You’ll find more information on beer processed to remove gluten here.