- Language: Kumandy-Kizhi
- Alternate names: Kumandï, Kumandin, Kubandy, Kuvanty
- Language code: datvk
- Language family: Turkic, Common Turkic, Central Siberian Turkic, South Siberian Turkic
- Dialect of: Altai, Northern
- Number of speakers: 738
- Script: Cyrillic script.
Baskakov (1958) describes the Kumandy Kizhi as living along "the banks of the Biya between the tributaries Lebed' and Balyksu in the Aymak Turačak of the Gorno-Altai Autonomous Region (villages of Šunarak, Surbaševo and north of the mouth of the Lebed' - in the rural settlements of Sanjkin and Tondoška) as well as in the Solton districts (Koobiya, Urtay, Pešper, etc. villages) and Starobardin (villages of Koža-bažy, Narlyk, Ak-kül, Čegening, Kurlek, etc.) in the Altai region.
Baskakov lists three dialects: