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Tofa, also known as Tofalar or Karagas, is one of the Turkic languages. It is a moribund language spoken in the Irkustsk region of Russian Siberia.

Tofa is most closely related to the Tuvan language and forms a dialect continuum with it, Tuha, and Tsengel Tuvan, which may be dialects of either Tuvan or Tofa. Tofa shares a number of innovations with these languages, including the change *d>z (as in *adaq > azak "foot") and the development of low tones on historically short vowels (as in *et > èt "meat, flesh").