Demak (Javanese: ꦢꦼꦩꦏ꧀) is a regency located in the Indonesian province of Central Java, on northern coast of the island. It is bordered by Jepara regency and the Java Sea to the north, Kudus and Grobogan regencies to the east, Grobogan and Semarang regencies to the south, while to the west are Semarang Regency and the city of Semarang, to which the districts of Mranggen and Sayung are essentially suburban.