Castanopsis javanica, the Javan chestnut-oak, is a tree in the beech family Fagaceae. The specific epithet is from the Latin, meaning "of Java".
Description Castanopsis javanica grows as a tree up to tall with a trunk diameter of up to . The brown bark is smooth or scaly. The coriaceous leaves measure up to long. Its discoid to ovoid nuts measure up to long.
Distribution and habitat Castanopsis javanica grows naturally in Thailand, Borneo, Java, Peninsular Malaysia and Sumatra. Its habitat is hill dipterocarp forests up to altitude.
Uses The wood is locally used in construction. The bark can be used in tanning. The nuts are considered edible.
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