Atuna cordata is a tree in the Atuna genus of the family Chrysobalanaceae. The specific epithet ' is from the Latin meaning "heart-shaped", referring to the leaf base.
Atuna cordata grows up to tall. The smooth bark is grey-green with white mottles. The fruits measure up to long.
Atuna cordata is endemic to Borneo where it is confined to Sabah. Its habitat is on ultramafic soils from sea-level to altitude.