The Basenji (bəˈsɛndʒi) is a breed of hunting dog. It was bred from stock that originated in central Africa. The Fédération Cynologique Internationale places the breed in the Spitz and primitive types. The Basenji produces an unusual yodel-like sound, due to its unusually shaped larynx. This trait also gives the Basenji the nickname the 'barkless dog.'
Basenjis share many distinctive traits with pariah dog types. Basenjis come into estrus only once annually similar to dingoes, New Guinea singing dogs and Tibetan Mastiffs, when compared with other dog breeds which may have two or more breeding seasons each year. Basenji lack a distinctive odor, and are prone to howls, yodels, and other vocalizations over the characteristic bark of modern dog breeds. The breed's original foundation stock came from Congo.
The Azande and Mangbetu people from the northeastern Congo region describe a Basenji, in the local Lingála language, as mbwá na basɛ́nzi, meaning "dog of the savages" or "dog of the villagers". In the Congo, the Basenji is also known as the "dog of the bush".
The dogs are also known to the Azande of South Sudan as ango angari.
The word basɛ́nzi itself is the plural form of mosɛ́nzi.
In Swahili, another Bantu language, from East Africa, mbwa shenzi translates to "savage dog". Another local name is m'bwa m'kube, 'mbwa wa mwitu "wild dog", or "dog that jumps up and down", a reference to their tendency to jump straight up to spot their quarry.
The Basenji has been identified as a basal breed that predates the emergence of the modern breeds in the 19th century. DNA studies based on whole-genome sequences indicate that the basenji and the dingo are both considered to be basal members of the domestic dog clade.
In 2021, the genome of two basenjis were assembled, which indicated that the basenji fell within the Asian spitz group. The AMY2B gene produces an enzyme, amylase, that helps to digest starch. The wolf, the husky and the dingo possess only two copies of this gene, which provides evidence that they arose before the expansion of agriculture.