The kinkajou belongs to the species Potos flavus, with the scientific name reflecting its golden-brown coloration (flavus meaning golden or yellowish in Latin). The genus Potos is monotypic, meaning the kinkajou is the only species within it, though several subspecies exist across its extensive range with subtle variations in size and coloration. Despite its somewhat cat-like appearance, the kinkajou is a member of the family Procyonidae, making it a relative of raccoons, coatis, and olingos rather than being related to primates, felines, or other animals it superficially resembles.
The common name kinkajou derives from a word in an Algonquian language, though the exact etymology remains debated among linguists. Alternative common names reflect various aspects of the animal's appearance and behavior. Honey Bear is perhaps the most widely used alternate name, referring to the kinkajou's love of sweet substances including honey, nectar, and ripe fruit. This name is somewhat misleading as kinkajous are not bears and belong to a completely different taxonomic order. Some sources use Sugar Bear for similar reasons, emphasizing their preference for sugary foods.
Regional names include Night Walker, acknowledging their strictly nocturnal lifestyle, and Cercoleptes, which is actually an obsolete genus name sometimes used colloquially. In Central and South American countries throughout their range, local names vary by language and region. Spanish speakers may use martilla, though this term can refer to several species. Indigenous languages have numerous local names reflecting the kinkajou's importance in traditional cultures. Pet trade marketing sometimes uses creative names like Cuddle Bear or Teddy Bear, which are misleading and contribute to misconceptions about kinkajou temperament and suitability as pets.
Scientific literature occasionally references older taxonomic classifications, as the kinkajou's relationships within Procyonidae were debated historically. The species was once placed in the genus Cercoleptes, and some older references use this nomenclature. Modern genetic analysis firmly places kinkajous in genus Potos and confirms their position within Procyonidae, though they represent a unique evolutionary lineage within the family. The confusion about kinkajou classification and appearance has led to persistent myths about their relatedness to primates, particularly due to their prehensile tail - a trait rare among non-primate mammals.
