Castanopsis javanica, the Javan chestnut-oak,[3] is a tree in the beech family Fagaceae.

The specific epithet javanica is from the Latin, meaning "of Java".

[4] Castanopsis javanica grows as a tree up to 40 metres (130 ft) tall with a trunk diameter of up to 100 cm (40 in).

[4] Castanopsis javanica grows naturally in Thailand, Borneo, Java, Peninsular Malaysia and Sumatra.

[2] Its habitat is hill dipterocarp forests up to 1,000 m (3,300 ft) altitude.