Würzburger Stein is a vineyard in the German wine region of Franconia that has been producing a style of wine, known as Steinwein since at least the 8th century. Located on a hill overlooking the Main river outside the city of Würzburg, the vineyard is responsible for what may have been the oldest wine ever tasted. In addition to being one of Germany's oldest winemaking sites, at 85 hectares, the vineyard is also one of Germany's largest individual plots.

Franconia is a German wine region, mostly in north west Franconia. It is the only wine region in the federal state of Bavaria. In 2014, vines were grown on 6,176 hectares of land in the region.