Cotoname language
| Cotoname | |
|---|---|
| Native to | Mexico, United States | 
| Region | lower Rio Grande | 
| Ethnicity | Cotoname | 
| Extinct | c. 1900 | 
| Language codes | |
| ISO 639-3 | xcn | 
| xcn | |
| Glottolog | coto1248 | 
| Map indicating where Cotoname was spoken | |
Cotoname is an Indigenous language of Mexico and the American state of Texas formerly spoken by Native Americans indigenous to the lower Rio Grande Valley of northeastern Mexico and extreme southern Texas (United States). Today it is extinct, and is proposed to be a component of a Pakawan language family. Today, it is considered a language isolate.
All known primary witnesses to the Cotoname language were published in 2024.