Lithocarpus confragosus is a tree in the beech family Fagaceae. The specific epithet confragosus means 'uneven', referring to the cupule wall surface.
Lithocarpus confragosus grows as a tree up to 30m (100feet) tall with a trunk diameter of up to 65cm (26inches). The brownish bark is smooth, scaly or lenticellate. The coriaceous leaves measure up to 18cm (07inches) long. Its brown acorns are ovoid to roundish and measure up to 41NaN1 across.
Lithocarpus confragosus grows naturally in Sumatra, Peninsular Malaysia and Borneo. Its habitat is hill dipterocarp forests up to 1100m (3,600feet) altitude.