Dunwick's

Dunwick's was an Irish red ale made before the Great War. Although it can't be found in any game, the logo for it can be found on beer taps across the Mojave Wasteland.

Appearances
The logo for Dunwick's can be found in Fallout: New Vegas.

Behind the scenes
The real-world equivalent to Dunwick's might be Smithwick's given the type of ale and style of font they're printed in.