What is the capital of Argentina?
The capital of Argentina is Buenos Aires
Buenos Aires is the capital city and seat of government of Argentina, a country in South America. Argentina uses the ISO codes AR and ARG, and its international dialling code is +54. The currency in use is the Argentine peso (ARS).
For the full profile of Argentina, including its flag, currency, calling code, population and the countries it borders, see the Argentina country page. The country has an estimated population of 45,851,378 as of 2025.
Quick facts about Argentina
- Capital: Buenos Aires
- Region: South America
- Currency: Argentine peso (ARS)
- Calling code: +54
- Flag emoji: 🇦🇷
Frequently asked questions
What is the capital of Argentina?
The capital of Argentina is Buenos Aires.
Is Buenos Aires the largest city in Argentina?
Buenos Aires is the capital of Argentina and its seat of government. In many countries the capital is also the largest city, though not always, so the biggest city by population can differ.
What currency is used in Buenos Aires?
Buenos Aires, like the rest of Argentina, uses the Argentine peso (ARS, symbol $).
Capitals of neighbouring countries
Capital and country data from open datasets. Full sources on the data page.