Kadugli, also Katcha-Kadugli-Miri or Central Kadu, is a Kadu language or dialect cluster of the Nilo-Saharan language family spoken in South Kordofan, Sudan.
Stevenson treats the varieties as dialects of one language, and they share a single ISO code, though Schadeberg (1989) treats them as separate languages.
Three of them are rather divergent, on the verge of being distinct languages: However, they share a single orthography and use the same literacy materials (Ethnologue).
Of the two other commonly cited varieties, Damba is somewhat closer to Kadugli, while Tumma appears to be a (sub)dialect of Katcha.
Villages in which the dialects are spoken according to the 22nd edition of Ethnologue: