Quechua: The Legacy and Structure of the Andes' Most Spoken Indigenous Language
Quechua, also known as Runa simi (meaning "people's language" in Southern Quechua), is a prominent indigenous language family that originated in central Peru. Over centuries, it spread across the Andean region, becoming the most widely spoken pre-Columbian language family in the Americas. Today, it remains a vital symbol of cultural identity and resilience across several South American nations.
The language family evolved from a common ancestral tongue known as Proto-Quechuan. While estimates of its speaker population vary, recent data suggests there are approximately 7.2 million native speakers, with a significant presence in Peru, where roughly 13.9% (3.7 million) of the population speaks a Quechua variety.

Key Facts
- Primary Region: Central and Southern Andes (Peru, Bolivia, Ecuador, Colombia, Argentina).
- Speaker Population: Estimated between 7 and 10 million people.
- Official Status: Recognized as an official language in Peru (since 1975), Ecuador (since 2006), and Bolivia (since 2009).
- Linguistic Root: Derived from Proto-Quechuan.
- Major Branches: Divided primarily into Quechua I (Central) and Quechua II (Peripheral).
Historical and Legal Status
Quechua has transitioned from the administrative language of the Inca Empire to a recognized official language in the modern era. Peru led the way in 1975 by granting Quechua official status. This was followed by Ecuador in 2006 and Bolivia in 2009, the latter of which recognized Quechua alongside several other indigenous languages.
The language's historical reach is evidenced by documents such as the 1560 vocabulary by Domingo de Santo Tomás and the 1816 Act of Argentine Independence, which was written in both Spanish and Quechua.


Linguistic Classification and Dialects
Linguists, most notably Alfredo Torero, classify the Quechuan family into two primary branches. Quechua I consists of central varieties such as Ancash, Wanka, and Yaru. Quechua II, often called Peripheral Quechua or Wanp'una ("Traveler"), is further subdivided into several groups.
The Branches of Quechua
- Quechua II-A: Includes reduced varieties like Cajamarca and Laraos.
- Quechua II-B (Northern Quechua): Spoken in Colombia (Inga Kichwa), Ecuador (Kichwa), and northern Peru.
- Quechua II-C (Southern Quechua): The most widespread group, encompassing Ayacucho, Cusco, Puno, and varieties in Bolivia and Argentina.

Geographic Distribution of Speakers
Measuring the exact number of speakers is challenging due to under-reporting in censuses. For instance, while the 2001 Ecuador census reported 500,000 speakers, linguistic sources estimate the number to be over 2 million. However, censuses in Peru and Bolivia are generally considered more reliable.
| Country | Estimated Speakers | Source/Year |
|---|---|---|
| Peru | 3,800,000 | 2017 Census |
| Bolivia | 2,100,000 | 2001 Census |
| Ecuador | 2,300,000 | Adelaar (1991) |
| Argentina | 900,000 | 1971 Data |
| Colombia | 4,402 – 16,000 | Various |
Grammar and Linguistic Structure
Quechua is an agglutinative language, meaning it builds complex words by adding multiple suffixes to a root. This is particularly evident in its noun and verb systems.
Nouns and Case Suffixes
Nouns use suffixes to indicate number, possession, and grammatical case. For example, the suffix -kuna indicates plurality (e.g., wasi "house" becomes wasi kuna "houses"). Case suffixes define the noun's role, such as -pi for locative ("at the house") or -manta for ablative ("from the house").
The Evidentiality System
One of the most distinctive features of Quechua is evidentiality—the requirement to specify the source of the information being shared. This is achieved through specific suffixes:
- -m(i): Direct evidence; the speaker witnessed the event.
- -chr(a): Inference or conjecture; the speaker is making a logical guess.
- -sh(i): Hearsay; the speaker is reporting what someone else said.

Frequently Asked Questions
What is the difference between Quechua and Kichwa?
Kichwa is the term typically used for the Northern Quechua (Quechua II-B) varieties spoken primarily in Ecuador.
How many people speak Quechua today?
Estimates vary widely, but it is generally placed between 7 and 10 million speakers across the Andean region.
Is Quechua a single language or a family of languages?
It is a language family derived from Proto-Quechuan, consisting of various interrelated languages and dialects divided into two main branches (Quechua I and II).
Which countries recognize Quechua as an official language?
Peru, Ecuador, and Bolivia have all granted Quechua official status through legislation or their national constitutions.
What does "Runa simi" mean?
Runa simi translates to "people's language," reflecting the identity of the speakers as Runakuna (the people).