Harvey's Brewery is a brewery in Lewes, East Sussex, England. Harvey's estate includes 45 tied houses, mostly in Sussex, and three in London: Royal Oak, Southwark, The Cat's Back, Wandsworth and The Phoenix, Stockwell. It sells and distributes its main product, Sussex Best Bitter, to other pubs, off-licences and social clubs in south east England. John Harvey established the Bridge Wharf Brewery on its present site by the River Ouse, overlooking Cliffe Bridge.