Aphanamixis borneensis is a tree in the family Meliaceae, native to maritime Southeast Asia. The specific epithet borneensis refers to the species' presence in Borneo.
Aphanamixis borneensis grows up to 13.5m (44.3feet) tall, with a trunk diameter of up to . The bark is reddish. The twigs are greyish. The leaves are elliptic to lanceolate and measure up to long. The feature cream to pinkish flowers. The fruits are red to pink.
Aphanamixis borneensis is native to Borneo, the Philippines (Palawan) and the Maluku Islands. Its habitat is lowland, heath or hill forests, at elevations to .