Today, Miwok people speak English.
In the past, they spoke the following languages, some of which still have a few speakers:
they speak in penutian
The Coast Miwok Indians spoke various dialects of the Miwok language, which is part of the Penutian language family. The dialects spoken by the Coast Miwok people included Marin, Bodega, and Bolinas.
The Manhasset indians spoke the Munsee and Unami languages.
Algonquian!
Sioux
algonquon
Sourashtian
Caddoan
english.
english.
They spoke Caddoan
Algonqulan Or Algonkian
Iroquian and/or Ojibway