Pforzheim (German pronunciation: [ˈpfɔʁtshaɪm] ) is a city of over 135,000 inhabitants in the federal state of Baden-Württemberg, in the southwest of Germany.
It is known for its jewelry and watch-making industry, and as such has gained the nickname Goldstadt ("Gold City"). With an area of 97.8 square kilometres (37.8 sq mi), it is situated about halfway between the cities of Stuttgart and Karlsruhe at the confluence of three rivers (Enz, Nagold and Würm). It lies on the border of Baden and Württemberg, on the Baden side. From 1535 to 1565, it was the home to the Margraves of Baden-Durlach.