The Navajo Nation Council is the Legislative Branch of the Navajo Nation government. The council meets four times per year, with additional special sessions, at the Navajo Nation Council Chamber, which is in Window Rock, Arizona.

Navajo or Navaho is a Southern Athabaskan language of the Na-Dené family, through which it is related to languages spoken across the western areas of North America. Navajo is spoken primarily in the Southwestern United States, especially in the Navajo Nation. It is one of the most widely spoken Native American languages and is the most widely spoken north of the Mexico–United States border, with almost 170,000 Americans speaking Navajo at home as of 2011.