Castanopsis fulva is a tree in the beech family Fagaceae.

The specific epithet fulva is from the Latin meaning 'tawny', referring to the indumentum.

[2] Castanopsis fulva grows as a tree up to 25 metres (80 ft) tall with a trunk diameter of up to 50 cm (20 in).

[2] Castanopsis fulva grows naturally in Borneo, Peninsular Malaysia and Sumatra.

[1] Its habitat is hill dipterocarp and kerangas forests up to 1,100 m (3,600 ft) altitude.