| Upper Chehalis | |
|---|---|
| Q̉ʷay̓áyiłq̉ | |
| Native to | United States |
| Region | south of Olympic Peninsula, Washington |
| Ethnicity | Chehalis people |
| Extinct | 2001 |
| Language codes | |
| ISO 639-3 | |
| Glottolog | uppe1439 |
Upper Chehalis (Q̉ʷay̓áyiłq̉) is a member of the Tsamosan (Olympic) branch of the Coast Salish family of Salishan languages. In some classifications, Upper Chehalis is placed closer to Cowlitz than it is to Lower Chehalis.