Gonystylus borneensis is a flowering plant in the family Thymelaeaceae. It is native to Borneo.
Gonystylus borneensis grows as a tree up to tall, with a trunk diameter of up to . The bark is greyish brown and fissured. The fruit is round, brown, up to in diameter.
Gonystylus borneensis was first described as Asclerum borneense in 1893 by French botanist Phillippe ÃÂdouard Léon van Tieghem in the Annales des Sciences Naturelles; Botanique. In 1897, German botanist Ernest Friedrich Gilg transferred the species to the geuns Gonystylus. The type specimen was collected on Mount Matang in Sarawak, Borneo. The specific epithet borneensis means 'of Borneo'.
Gonystylus borneensis is endemic to Borneo. Its habitat is in dipterocarp and kerangas forests from sea level to altitude.
Gonystylus borneensis has been assessed as least concern on the IUCN Red List. However, its population is decreasing due to deforestation of land for palm oil plantations. The species is not known from any protected areas.