This list of Nepenthes species is a comprehensive listing of all known species of the carnivorous plant genus Nepenthes. It includes 166 recognised extant species, 2 incompletely diagnosed taxa, and 3 nothospecies. Three possible extinct species are also covered. All major islands within a species's geographic range are included. Smaller surrounding islands are listed separately under "Minor islands", though these lists are not exhaustive. In the case of archipelagos such as the Philippines, the individual islands to which the species is native are shown in brackets.