There were many different tribes of northwest Native Americans, meaning there were different languages. These languages were Nootka, Coast Salish, and Chinook. They also may have spoken a dialect of Chinook jargon that included French, English, and Russian words.
Iroquian and/or Ojibway
The Manhasset indians spoke the Munsee and Unami languages.
Caddoan
Algonquian!
Sioux
Sourashtian
english.
algonquon
english.
Algonqulan Or Algonkian
They spoke Caddoan
The tribes that speak Salishan languages may be conveniently divided into Northern Plateau and Interior Salish; there are also Coast Salish among the Northwest Coast Indians. The Northern Plateau Salish include the Shuswap, Lillooet, and Ntlakapamux