Dipterocarpus tuberculatus (Khmer khlông,[2] Indian English gurjuntree[3]) is a species of tree in the family Dipterocarpaceae found in Bangladesh, Myanmar, Thailand, Cambodia, Laos and Vietnam.

The tree is found in clear forests of plains, at altitudes up to 800–1,000 m (2,600–3,300 ft).

[2] The lipids and wood are used in the Indian subcontinent.

[3] Uses in Cambodia include: using the leaves for packaging and sometimes for covering huts; the wood, resistant to bad weather, is used to make beams, boards and for the manufacture of boats; and the roots are used in traditional medicine to cure fractures.

[2] At least recently, the tree is an important firewood source in some areas of the Cambodian province of Kompong Chhnang.