---
title: "Brazil: Largest Country in South America | Model Diplomat"
description: "Brazil is the largest country in South America and a federal presidential republic, playing a key role in Latin American politics and the BRICS bloc."
url: "https://modeldiplomat.com/learn/glossary/brazil"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- Brazil is the largest country in South America, a federal presidential republic and the world's seventh-most-populous state, anchoring Latin American politics and the BRICS bloc.
- What is the capital of Brazil and when was it founded?
- What multilateral blocs does Brazil belong to?
- Why is Brazil central to global climate diplomacy?
- What language is spoken in Brazil and why does it differ from its neighbors?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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In October 2022, Luiz Inácio Lula da Silva defeated incumbent Jair Bolsonaro in a runoff to win a third term as Brazil's president, taking office in January 2023.

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