The Mongo people are a Bantu ethnic group who live in the equatorial forest of Central Africa.[1] They are the second largest ethnic group in the Democratic Republic of Congo, highly influential in its north region.[2] A diverse collection of sub-ethnic groups, they are mostly residents of a region north of the Kasai and the Sankuru Rivers, south of the main Congo River bend.[1] Their highest presence is in the province of Équateur and the northern parts of the Bandundu Province.[3]
Origins of the Mongo people (approx).[1]
Mongo
People     Bomongo
Language     Lomongo, Nkundo
Three Mongo women, ca. 1900-1915

The Mongo people, despite their diversity, share a common legend wherein they believe that they are the descendants of a single ancestor named Mongo.

They also share similarities in their language and social organization, but also have differences.

Anthropologists first propose  the Mongo unity as an ethnic group in 1938 particularly by Boelaert, followed by a major corpus on Mongo people in 1944 by Vanderkerke –at that time the governor of Équateur.

The Mongo people traditionally speak the Mongo language (also called Nkundo) or one of the related languages in the Bantu Mongo family, in the Niger-Congo family of languages.

The Lingala language, however, often replaces Mongo in urban centers.

This language has about two hundred dialects, and these are found clustered regionally as well as based on Mongo sub-ethnic groups such as Bolia, Bokote, Bongandu, Ekonda, Iyaelima, Konda, Mbole, Mpama, Nkutu, Ntomba, Sengele, Songomeno, Dengese and Tetela-Kusu, Bakutu, Boyela and many others.