Navajo is a census-designated place (CDP) on the Navajo Nation in McKinley County, New Mexico, United States. The population was 2,097 at the 2000 census. Navajo is the most Navajo town in the United States, with 95.04% of residents having full or partial Navajo ancestry.

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.