Lithocarpus confertus is a tree in the beech family Fagaceae. The specific epithet confertus means 'crowded', referring to the inflorescences and infructescences.
Lithocarpus confertus grows as a tree up to 30m (100feet) tall with a trunk diameter of up to 60cm (20inches). The greyish brown bark is scaly or lenticellate. The coriaceous leaves measure up to 12cm (05inches) long. Its dark brown or purplish acorns are ovoid and measure up to 11NaN1 across.
Lithocarpus confertus is endemic to Borneo. Its habitat is dipterocarp, peat swamp and lower montane forests from 900m (3,000feet) to 1200m (3,900feet) elevation.