Quechua, also called Runasimi in Southern Quechua, is an indigenous language family that originated in central Peru and thereafter spread to other countries of the Andes. Derived from a common ancestral "Proto-Quechua" language, it is today the most widely spoken pre-Columbian language family of the Americas, with the number of speakers estimated at 8–10 million speakers in 2004, and just under 7 million from the most recent census data available up to 2011. Approximately 13.9% of Peruvians speak a Quechua language.

Peru has many languages in use, with its official languages being Spanish, Quechua and Aymara. Spanish has been in the country since it began being taught in the time of José Pardo instead of the country's Native languages, especially the languages in the Andes. In the beginning of the 21st century, it was estimated that in this multilingual country, about 50 very different and popular languages are spoken: which reduces to 44 languages if dialects are considered variants of the same language. The majority of these languages are Indigenous, but the most common language is Spanish, the main language that about 94.4% of the population speaks. Spanish is followed by the country's Indigenous languages, especially all types of Quechua and Aymara (1.7%), who also have co-official status according to Article 48 of the Constitution of Peru, as well as the languages of the Amazon and the Peruvian Sign Language. In urban areas of the country, especially the coastal region, most people are monolingual and only speak Spanish, while in many rural areas of the country, especially in the Amazon, multilingual populations are prevalent.