Lithocarpus echinulatus is a tree in the beech family Fagaceae. The specific epithet echinulatus means 'having short spines', referring to the cupule.
Lithocarpus echinulatus grows as a buttressed tree up to 40m (130feet) tall with a trunk diameter of up to 80cm (30inches). The brownish bark is smooth. The coriaceous leaves measure up to 22cm (09inches) long. Its brown acorns are roundish and measure up to 3.31NaN1 across.
Lithocarpus echinulatus is endemic to Borneo. Its habitat is lowland dipterocarp forests, generally by rivers, up to 400m (1,300feet) elevation.