Pinus merkusii, the Merkus pine or Sumatran pine, is a pine native to parts of southeast Asia, and the only one that occurs naturally south of the equator.

The Pinaceae, or pine family, are conifer trees or shrubs, including many of the well-known conifers of commercial importance such as cedars, firs, hemlocks, larches, pines, and spruces. The family is