Caddo language

Caddo
Hasí꞉nay
Pronunciation[hasí:naj]
Native toUnited States
RegionCaddo County, western Oklahoma
Ethnicity6,300 Caddo people (2016, tribal enrollment estimate)
ExtinctJuly 14, 2025 with death of Edmond Johnson
Revival2022
Caddoan
  • Caddo
Dialects
  • Hasinai
  • Hainai
  • Kadohadacho
  • Natchitoches
  • Yatas
Language codes
ISO 639-2cad
ISO 639-3cad
Glottologcadd1256
ELPCaddo
Linguasphere64-BBA-a
Map showing the distribution of Oklahoma Indian Languages

Caddo (endonym: Hasí꞉nay, pronounced [hasí:naj]) is a Caddoan language indigenous to the Southern United States and the traditional language of the Caddo Nation. It is recently extinct, with the last native speaker dying in 2025, down from 25 native speakers in 1997; nevertheless there are revitalization programs. Caddo had several mutually-intelligible dialects. The most commonly used dialects were Hasinai and Hainai; others included Kadohadacho, Natchitoches and Yatasi.