Jong Java ship

The djong, jong, or jung (also called junk in English) is a type of ancient sailing ship originating from Java, Indonesia that was widely used by Javanese and later Malay sailors. The word was and is spelled jong in its languages of origin, the "djong" spelling being the colonial Dutch romanization.

Djongs are used mainly as a seagoing passenger and cargo vessels. They traveled as far as the Atlantic Ocean in the medieval era. Javanese kingdoms such as Majapahit, Demak Sultanate, and Kalinyamat Sultanate used these vessels as warships, but still predominantly as transport vessels.Mataram Sultanate primarily used jong as a merchant ship rather than a warship.