Diu is a town in Diu district in the union territory of Daman and Diu, India. It was the location of the pivotal Battle of Diu in 1509 between Portugal and a combined force of Turkey, Egypt, Venice, the Republic of Ragusa (now known as Dubrovnik) and the Sultan of Gujarat, Mahmud Begada.
The town of Diu lies at the eastern end of Diu Island, and is known for its fortress and old Portuguese Cathedral. It is also a fishing town.
It is the tenth least populated district of India