Changes in the nomenclature of the Orang Utan recently proposed by Röhrer-Ertl are shown to be unnecessary. The generic name Pongo Van Wurmb, 1784, for the genus, P.s. satyrus Linnaeus, 1758, for the Sumatran subspecies, and P.s. borneensis Van Wurmb, 1784, for the Bornean subspecies, as used by Röhrer-Ertl all are invalid, and should be replaced by the correct traditional names, Pongo Lacépède, 1799, for the genus, P.p. pygmaeus (Linnaeus, 1760) for the Bornean subspecies, and P.p. abelii Lesson, 1827, for the Sumatran subspecies.