John Smith's Brewery
（重定向自John Smiths）
John Smith's Brewery in Tadcaster, North Yorkshire, England, produces beers including John Smith's, the biggest selling bitter in the United Kingdom since the mid-1990s.
The majority of John Smith's sales are of the nitrogenated Extra Smooth product, although a cask conditioned variant is available nationally. A stronger variant called Magnet is also available in the North East of England. John Smith's Cask and Magnet are produced under licence by Cameron's in Hartlepool.