Castanopsis buruana is a tree in the family Fagaceae. The specific epithet Latin: buruana is from the Latin, meaning "of Buru" (one of Indonesia's Maluku Islands).
Castanopsis buruana grows as a tree up to 30m (100feet) tall with a trunk diameter of up to 60cm (20inches). The brown bark is smooth or scaly. The coriaceous leaves measure up to 13cm (05inches) long. Its ovoid to roundish nuts measure up to 1.51NaN1 long.
Castanopsis buruana grows naturally in Borneo, Sulawesi and Maluku. Its habitat is dipterocarp forests from sea-level to 450m (1,480feet) altitude.