The Indigenous languages of the Americas are the languages that were used by the Indigenous peoples of the Americas before the arrival of non-Indigenous peoples. Over a thousand of these languages are still used today, while many more are now extinct. The Indigenous languages of the Americas are not all related to each other; instead, they are classified into a hundred or so language families, as well as a number of extinct languages that are unclassified due to the lack of information on them.

The Indigenous peoples of the Americas are groups of people native to a specific region that inhabited the Americas before the arrival of European settlers in the 15th century and the ethnic groups who continue to identify themselves with those peoples.