- Language: Tuba-Kizhi
- Alternate names: Tuba, Tuma, Tuva, Dʼiš, Tʼiš, Yiš, Tubalar, Chernev Tatar
- Language code: datvt
- Language family: Turkic, Common Turkic, Central Siberian Turkic, South Siberian Turkic
- Dialect of: Altai, Northern
- Number of speakers: 229
- Script: Cyrillic script.
Baskakov (1958) describes the Tuba Kizhi as living "between the Katun' and Biya rivers, along the Uymen, Ryzha, Big and Little Izha, Sary and Kara-Kokshy rivers, and at at the edges of the upper reaches of the Mayma in the Choy (villages of Salganda, Inygra, Tushkenek etc.) and Turachak (villages of Kebezen', Artybash, etc.) aimaks."