refers to several groups of Native Americans
in the Pacific Northwest
region of the United States
. Chinookan groups include the Cathlamet, Cathlahmahs, Chilluckittequaw, Clatsop, Chahcowah, Clackama, Clowwewalla, Cushook, Echelut (Wishram-Wasco),
Killaniuck, Klickitat, Multnomah, Skilloot, Wahkiakum (Wac-ki-a-cum), Wappato, Wascopan, and the Watlata (Cascade or Wishram). Most surviving Chinookan natives live in the towns of Bay Center
, and Ilwaco
Chinookan also refers to a language family of two Northwest Coast Native American languages: Upper Chinook (Wishram-Wasco) and Lower Chinook. Both Chinookan languages are nearly extinct.