Quechua is the name of a people of the central Andes of South America and their languages.Quechua may refer to: Quechua people, several indigenous ethnic groups in South America, especially in Peru but also in Ecuador, Bolivia, Chile, Colombia and Argentina Quechuan languages, a Native South American language family spoken primarily in the Andes, derived from a common ancestral language Southern Quechua, the most widely spoken Quechua language, with about 6.9 million speakers Quechua Boliviano, a dialect of Southern Quechua spoken in Bolivia and in northern ArgentinaQuechua was used by the ancestors of the Inca.

The Inca's language before they started to use Quechua is unknown.