Nepenthes bongso /nɪˈpɛnθiːz ˈbɒŋsoʊ/ is a tropical pitcher plant endemic to Sumatra, where it has an altitudinal distribution of 1000–2700 m above sea level.

[10][11] The specific epithet bongso refers to the Indonesian legend of Putri Bungsu (literally "youngest daughter"), the spirit guardian of Mount Marapi.

[10] The species was formally described by Pieter Willem Korthals in his 1839 monograph, "Over het geslacht Nepenthes".

[2] Nepenthes carunculata[note a] is considered a heterotypic synonym of N. bongso by most authorities.

[13] In his Carnivorous Plant Database, taxonomist Jan Schlauer treats N. junghuhnii (sensu Macfarlane) as a possible synonym of N. bongso.