Wolaitta or Wolayttatto Doonaa is a North Omotic language of the Ometo group spoken in the Wolayita Zone and some other parts of southwestern Ethiopia. It is the native language of the Welayta people. The estimates of the population vary greatly because it is not agreed where the boundaries of the language are.
There are conflicting claims about how widely Wolaytta is spoken. Some hold that Melo, Oyda, and Gamo-Gofa-Dawro are also dialects, but most sources, including Ethnologue and ISO 639-3 now list these as separate languages. The different communities of speakers also recognize them as separate languages. A variety called Laha is said to be 'close' to Wolaytta in Hayward (1990) but listed as a distinct language by Blench; however, it is not included in Ethnologue.