The Special Region of Yogyakarta (English: /ˌjoʊɡjəˈkɑːrtə/; Indonesian: Daerah Istimewa Yogyakarta; DIY; Javanese: ꦥꦤꦒꦫꦩꦶꦫꦸꦁꦒꦤ꧀ꦔꦪꦺꦴꦒꦾꦏꦂꦠ, romanized: Panagara Mirunggan Ngayogyakarta) is a province-level special region of Indonesia in southern Java. It is a semi-enclave that is surrounded by on the landward side by Central Java Province to the west, north, and east, but has a long coastline on the Indian Ocean to the south.
Co-ruled by the Yogyakarta Sultanate and the Duchy of Pakualaman, the region is the only officially recognized diarchy within the government of Indonesia. The city of Yogyakarta is a popular tourist destination and cultural center of the region. The Yogyakarta Sultanate was established in 1755 and provided unwavering support for Indonesia's independence during the Indonesian National Revolution (1945–1949). As a first-level division in Indonesia, Yogyakarta is governed by Sultan Hamengkubuwono X as the governor and Duke Paku Alam X as the vice governor. With a land area of just 3,170.645 km, it is the second-smallest province-level entity of Indonesia after Jakarta.