| Language | Comments | No. Speakers | Source | ISO 639-3 | Ethnologue entry |
|---|---|---|---|---|---|
| Chiriguano language | Red Book | ||||
| Chorote language | see also Matacoan languages | Red Book | Chorote language | ||
| Guarani Correntino language | Red Book | ||||
| Gununa Yajich language | Red Book | ||||
| Mapuche language | Red Book | ||||
| Mbya language | Red Book | ||||
| Mocovi language | Red Book | moc | Mocovi language | ||
| Nivacle language | Red Book | cag | Nivacle language | ||
| Ona language | 1 to 3 (1991 Adelaar) | Ethnologue | ona | Ona | |
| Pilaga language | Red Book | plg | Pilaga language | ||
| Puelche language | 5 or 6 | Ethnologue | pue | Puelche | |
| Quichua Santiagueno language | Red Book | ||||
| Tapiete language | Red Book | tpj | Tapiete language | ||
| Tehuelche language | 4 (2000 W Adelaar) 200 (2000 W Adelaar) | Ethnologue | teh | Tehuelche | |
| Toba Sur language | Red Book | tob | Toba language | ||
| Vilela language | 20 (1981 Buckwalter) | Ethnologue | vil | Vilela | |
| Wichi language | Red Book | ||||
| Yaghan language | Red Book | Yaghan language |
Read more about this topic: List Of Endangered Languages In South America