Dipterocarpus is a genus of flowering plants and the type genus of family Dipterocarpaceae. Dipterocarpus are the third largest and most diverse genus among Dipterocarpaceae. They are well known for timber, but less acknowledged for its medicinal importance. The genus has about 70 species, occurring in Southeast Asia. It is an important component of dipterocarp forests. Its generic name comes from Greek and means "two-winged fruits". The greatest diversity of Dipterocarpus species occurs on Borneo, with many endemic to the island.