Harveys Brewery (Harvey & Son (Lewes) Ltd.) is a brewery situated in Lewes, in the county of East Sussex, England.
As of 2008, Harvey's estate includes 50 tied houses, almost all in East Sussex and neighbouring counties. It distributes its main product Sussex Best, a bitter, to many more pubs in that area.
It was under the management of John Harvey (1784–1862) that the Bridge Wharf Brewery was established on its present site by the River Ouse, overlooking Cliffe Bridge, Lewes.
Although Harveys Brewery has traditionally omitted an apostrophe from its name and products, the newly designed pump badge (since 2010) for their Sussex Best Bitter includes one. At present this is the only known usage of an apostrophe in the Harveys name.