Wonoboyo hoard is an important archaeological find of golden and silver artifacts from the 9th century Mataram Kingdom in Central Java, Indonesia.

[1][2] The hoard was discovered on 17 October 1990 in Plosokuning hamlet, Wonoboyo village, Klaten, Central Java, when a paddy field owned by Mrs. Cipto Suwarno was being dug by Witomoharjo and five other workers as part of an irrigation project.

Next to the high value of the gold and silver artifacts, it is also significant to reveal the wealth, economy, art, and culture of the 9th-century Javanese Mataram Kingdom.

The artifacts show the intricate artworks and also display the aesthetic and technical mastery of ancient Java goldsmiths.

On the surface of the gold coins engraved with the script "ta", a short form of "tail" or "tahil" a unit of currency in ancient Java.