- Language: Lakota
- Alternate names: Lakhota, Lakȟótiyapi, Teton
- Language code: lkt
- Language family: Siouan-Catawban, Siouan, Mississippi Valley-Ohio Valley Siouan, Mississippi Valley Siouan, Dakota (SIL classification)
- Number of speakers: 2000
- Vulnerability: Endangered
- Script: Latin script.
Lakota (Teton) is one of 3 major dialects of Sioux, a cover term for the varieties of the Dakotan dialect complex other than Assiniboine and Stoney.