Dryobalanops oblongifolia is a species of plant in the family Dipterocarpaceae, native to regions of Southeast Asia and Maritime Southeast Asia.
The species name is derived from Latin (Latin: oblongus = rather long and leaf (Latin: folium = leaf); and refers to the shape of the leaf.
Both produce heavy hardwood timber, which is sold under the trade name of Kapur.
There are two subspecies:
It is found in at least one protected area (Kubah National Park), but is threatened elsewhere due to habitat loss. It is an emergent tree, up to 60 m tall, found in mixed dipterocarp forest on sandy clay soils.