| Language | Comments | Speakers | Source | ISO 639-3 | Ethnologue entry |
|---|---|---|---|---|---|
| Achuar-Shiwiar language | Red Book | acu | Achuar-Shiwiar language | ||
| Awapit language | Red Book | ||||
| Chachi language | Red Book | cbi | Chachi language | ||
| Cofan language | Red Book | con | Cofan language | ||
| Epera language | Red Book | ||||
| Huaorani language | Red Book | ||||
| Secoya language | Red Book | sey | Secoya language | ||
| Shuar language | Red Book | jiv | Shuar language | ||
| Siona language | Red Book | snn | Siona language | ||
| Tsafiqui language | Red Book | ||||
| Zaparo language | 1 (2000 SIL) 170 (2000 M R Wise SIL). | Ethnologue | Zaparo language |
Read more about this topic: List Of Endangered Languages In South America