The Kuki-Chin languages (also called Kukish or South-Central Tibeto-Burman languages) are a branch of 50 or so Sino-Tibetan languages spoken in northeastern India, western Burma and eastern Bangladesh. Most speakers of these languages are known as Kukī in Assamese and as Chin in Burmese; some also identify as Lushei. Mizo is the most widely spoken of the Kuki-Chin languages.
Kuki-Chin is sometimes placed under Kuki-Chin–Naga, a geographical rather than linguistic grouping.
The Karbi languages may be closely related to Kuki-Chin, but Thurgood (2003) and van Driem (2011) leave Karbi unclassified within Sino-Tibetan.
The Kuki-Chin branches listed below are from VanBik (2009), with the Northwestern branch added from Scott DeLancey, et al. (2015), and the Khumic branch (which has been split off from the Southern branch) from Peterson (2017).
Darlong and Ranglong are unclassified Kuki-Chin language.
The recently discovered Sorbung language may be mixed language that could classify as either a Kuki-Chin or Tangkhul language (Mortenson & Keogh 2011).
Anu-Hkongso speakers self-identify as ethnic Chin people, although their language is closely related to Mru rather than to Kuki-Chin languages. The Mruic languages constitute a separate Tibeto-Burman branch, and are not part of Kuki-Chin.
Kenneth VanBik's (2009:23) classified the Kuki-Chin languages based on shared sound changes (phonological innovations) from Proto-Kuki-Chin as follows.
^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Kuki-Chin". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
^Konnerth, Linda. 2018. The historical phonology of Monsang (Northwestern South-Central/“Kuki-Chin”): A case of reduction in phonological complexity. Himalayan Linguistics, Vol. 17(1): 19-49.
^Thurgood, Graham (2003) "A subgrouping of the Sino-Tibetan languages: The interaction between language contact, change, and inheritance." In G. Thurgood and R. LaPolla, eds., The Sino-Tibetan languages, pp. 13–14. London: Routledge, ISBN978-0-7007-1129-1.
^DeLancey, Scott; Krishna Boro; Linda Konnerth1; Amos Teo. 2015. Tibeto-Burman Languages of the Indo-Myanmar borderland. 31st South Asian Languages Analysis Roundtable, 14 May 2015.
^ abcdePeterson, David. 2017. "On Kuki-Chin subgrouping." In Picus Sizhi Ding and Jamin Pelkey, eds. Sociohistorical linguistics in Southeast Asia: New horizons for Tibeto-Burman studies in honor of David Bradley, 189-209. Leiden: Brill.
S. Dal Sian Pau. 2014. The comparative study of Proto-Zomi (Kuki-Chin) languages. Lamka, Manipur, India: Zomi Language & Literature Society (ZOLLS). [Comparative word list of Paite, Simte, Thangkhal, Zou, Kom, Tedim, and Vaiphei]