Dryobalanops is a genus of flowering plants and the genus of family Dipterocarpaceae. The name Dryobalanops is derived from Greek (dryas = a nymph associated with oaks and balanops = acorn) and describes the acorn-like nut. The genus has seven species, confined to the tropical forests of West Malesia (Sumatra, Peninsular Malaysia and Borneo). It is among the most abundant species of emergent trees in these forests, growing up to 80 m tall.