Duff Beer is a brand of beer that originated as a fictional beverage on the animated series The Simpsons.
Beers using the Duff branding have been brewed in a number of countries, resulting in legal battles with varying results.
Here in the UK Daleside Brewery make a beer called Duff.
Duff Beer UG's beer is distributed in the United Kingdom as "The Legendary Duff Beer". While news reports of its 2011 introduction mentioned The Simpsons, its own website does not, although it refers to its "iconic packaging" and states "The product has certainly fulfilled its namesake in becoming a modern day legend".
