Castanopsis javanica, the Javan chestnut-oak, is a tree in the beech family Fagaceae. The specific epithet Latin: javanica is from the Latin, meaning "of Java".
Castanopsis javanica grows as a tree up to 40m (130feet) tall with a trunk diameter of up to 100cm (00inches). The brown bark is smooth or scaly. The coriaceous leaves measure up to 13cm (05inches) long. Its discoid to ovoid nuts measure up to 2.51NaN1 long.
Castanopsis javanica grows naturally in Thailand, Borneo, Java, Peninsular Malaysia and Sumatra. Its habitat is hill dipterocarp forests up to 1000m (3,000feet) altitude.
The wood is locally used in construction. The bark can be used in tanning. The nuts are considered edible.