Peoples of the Americas

Introduction · Paraguay, Brazil, Argentina, Bolivia

Guaraní

Guaraní names related peoples of the South American lowlands, Mbyá, Avá, Paĩ Tavyterã, Kaiowá, Isoseño and others, and the language whose reach goes far beyond them.

The peoples of the forested lowlands where four countries meet, and the source of something unique in the hemisphere: an Indigenous language spoken by an entire nation.

Preliminary research2 working sources · reviewed 2026-08How to read this

Guaraní country runs from eastern Paraguay into southern Brazil, the Argentine province of Misiones and the Bolivian Chaco, forest and river land farmed in clearings and threaded by wide kinship networks. Paraguay's 2022 Indigenous census counted 140,049 Indigenous people across 19 peoples, with the Guaraní family of peoples much the largest at 76,506; tens of thousands more live across the borders in Brazil, Argentina and Bolivia.

In the 17th and 18th centuries, thousands of Guaraní built and governed the mission towns of the Jesuit reductions, La Santísima Trinidad, São Miguel and their sister towns, now World Heritage ruins, a chapter that still shapes the region's memory. Expulsion, war and the plantation frontier followed; Guaraní communities held on through all of it, and in Brazil the Guarani-Kaiowá land struggle remains one of the continent's hardest-fought.

The language did something no other Indigenous American language has done: it became a whole country's speech. Guaraní has been co-official with Spanish in Paraguay since 1992, and about two in three Paraguayan households use it, alone or alongside Spanish, while the Indigenous Guaraní peoples themselves continue to fight for land and recognition within the nation their language names.

This is an introduction, the first layer. A full collection, like the Mapuche collection that opened this atlas, follows as research and review are completed for each people.

Real coastlines; presence shown as soft light at heartland anchors, approximate, never a border. Touch a point for the place it names.
Where
Eastern Paraguay, southern Brazil, Misiones (Argentina), the Bolivian Chaco
Language
Guaraní: co-official in Paraguay since 1992; about two in three Paraguayan households use it
People
76,506 of Paraguay's 140,049 Indigenous people (2022 census); communities across four countries