Siouan languages
| Siouan | |
|---|---|
| Siouan–Catawban | |
| Geographic distribution | central North America | 
| Linguistic classification | One of the world's primary language families | 
| Subdivisions | 
 | 
| Language codes | |
| ISO 639-2 / 5 | sio | 
| Linguasphere | 64-A | 
| Glottolog | siou1252 | 
| Pre-contact distribution of the Siouan–Catawban languages | |
Siouan (/ˈsuːən/ SOO-ən), also known as Siouan–Catawban (/ˌsuːən kəˈtɔː.bən/ SOO-ən kə-TAW-bən), is a language family of North America located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.