The dozen Ngbaka languages are a family of Ubangian languages

Ubangian languages

The Ubangian languages form a fairly close-knit language family of some seventy languages centered on the Central African Republic. They are the predominant languages of the CAR, spoken by 2–3 million people, and include the national language, Sango....

 spoken in the Central African Republic

Central African Republic

The Central African Republic , is a landlocked country in Central Africa. It borders Chad in the north, Sudan in the north east, South Sudan in the east, the Democratic Republic of the Congo and the Republic of the Congo in the south, and Cameroon in the west. The CAR covers a land area of about ,...

 and neighboring areas. It includes Pygmy

Pygmy

Pygmy is a term used for various ethnic groups worldwide whose average height is unusually short; anthropologists define pygmy as any group whose adult men grow to less than 150 cm in average height. A member of a slightly taller group is termed "pygmoid." The best known pygmies are the Aka,...

 languages such as Baka and Gundi. The most populous Ngbaka languages are Mbaka in the western branch, spoken by a quarter million people, and Mayogo

Mayogo language

Mayogo is a Ubangian language spoken by the Day , Maambi, and Mangbele peoples of DRC Congo. It is not close enough to Bangba, the most closely related language, for mutual intelligibility....

 in the eastern branch, spoken by half that number.

Languages

Per Ethnologue

Ethnologue

Ethnologue: Languages of the World is a web and print publication of SIL International , a Christian linguistic service organization, which studies lesser-known languages, to provide the speakers with Bibles in their native language and support their efforts in language development.The Ethnologue...

16, the structure of the family is as follows:

• Eastern
  • Mayogo–Bangba: Bangba
    Bangba language
    Bangba is a minor Ubangian language of DRC Congo. It is not close enough to other Eastern Ngbaka languages for mutual intelligibility....
    
    , Mayogo
    Mayogo language
    Mayogo is a Ubangian language spoken by the Day , Maambi, and Mangbele peoples of DRC Congo. It is not close enough to Bangba, the most closely related language, for mutual intelligibility....
    
    
  • Mündü
    Mündü language
    Mündü is a Ubangian language of South Sudan, with a few thousand speakers in the Democratic Republic of the Congo....
    
    
• Western
  • Baka
    Baka language
    Baka is a dialect cluster of Ubangian languages spoken by the Baka Pygmies of Cameroon and Gabon...
    
     (Baka, Gundi, Ganzi, Limassa), ? Ngombe
  • Mbaka / Bwaka (Ngbaka Ma'bo, Gilima)
  • Gbanzili
    Gbanzili language
    Gbanziri is a Ubangian language of the Central African Republic and Democratic Republic of the Congo.Ethnologue lists Buraka separately, but notes that it is not known whether they are mutually intelligible....
    
     (Gbanziri, Buraka)
  • Monzombo (Monzombo, Kpala, Yango)

The varieties listed for each of the languages may not be mutually intelligible.