Lithocarpus bancanus is a tree in the beech family Fagaceae. The specific epithet ' is from the Latin, meaning "of Bangka" (an island east of Sumatra).
Lithocarpus bancanus grows as a tree up to tall with a trunk diameter of up to . The yellowish to greyish brown bark is smooth to scaly. The leaves measure up to long. Its brownish acorns are ovoid to roundish and measure up to long.
Lithocarpus bancanus grows naturally in Thailand, Borneo, Peninsular Malaysia and Sumatra. Its habitat is hill dipterocarp and sometimes peat swamp forests up to elevation.