Datça is a district of Muğla Province in south-west Turkey, and the center town of the district. The center is situated midway through the peninsula which carries the same name as the district and the town (Datça Peninsula).NameThe name Datça comes from Stadia, a name of the city of Cnidus. Stadia developed into Tadya, Dadya, Dadça, and then Datça.Both the town and the peninsula of Datça were called Reşadiye for a brief period in the beginning of the 20th century, honoring the penultimate Ottoman Sultan Mehmed V Reşad, and some maps may still refer to the peninsula under this name; today Reşadiye is the name of one of the quarters of the town.