The Special Region of Yogyakarta 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.

Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's most populous island, home to approximately 56% of the Indonesian population. Indonesia's capital city, Jakarta, is on Java's northwestern coast.