Nepenthes bokorensis is known with certainty only from the Mount Bokor massif in Bokor National Park, Kampot Province, Cambodia, where it has an altitudinal distribution of 800-1080 m above sea level. Three populations are known from the mountain. An as yet undetermined specimen (Aug. Chevalier 36411) suggests that the species may also be present in other parts of the Dâmrei Mountains.