De Witt (also: De Wit, De Witte and De With) is the name of an old Dutch patrician and regenten family. Originally from Dordrecht, the genealogy of the family begins with Jan de Witte, a patrician who lived around 1295. The family have played an important role during the Dutch Golden Age. They were at the centre of Dordrecht and Holland oligarchy from the end of the 16th century until 1672, and belonged to the Dutch States Party.