Luba-Kasai language
（重定向自Tshiluba）
Luba-Kasai, also known as Western Luba, Bena-Lulua, Ciluba/Tshiluba, Luba-Lulua or Luva, is a Bantu language (Zone L) of Central Africa, and an official language of the Democratic Republic of the Congo, alongside Lingala, Swahili, and Kikongo.
An eastern dialect is spoken by the Luba people of the East Kasai Region, and a western dialect by the Lulua people of the West Kasai Region. The total number of speakers was estimated at 6.3 million in 1991.