Xanthophyllum subcoriaceum is a plant in the family Polygalaceae. The specific epithet ' is from the Latin meaning 'somewhat leathery', referring to the leaves.
Xanthophyllum subcoriaceum grows as a shrub or tree up to tall with a trunk diameter of up to . The hard smooth bark is whitish or brownish. The flowers are white, drying orange. The round fruits are pale green to brown and measure up to in diameter.
Xanthophyllum subcoriaceum is endemic to Borneo. Its habitat is lowland swamp forest and mixed dipterocarp forest from sea-level to altitude.