What is the capital of Iran?
The capital of Iran is Tehran
Tehran is the capital city and seat of government of Iran, a country in Southern Asia. Iran uses the ISO codes IR and IRN, and its international dialling code is +98. The currency in use is the Iranian rial (IRR).
For the full profile of Iran, including its flag, currency, calling code, population and the countries it borders, see the Iran country page. The country has an estimated population of 92,417,681 as of 2025.
Quick facts about Iran
- Capital: Tehran
- Region: Southern Asia
- Currency: Iranian rial (IRR)
- Calling code: +98
- Flag emoji: 🇮🇷
Frequently asked questions
What is the capital of Iran?
The capital of Iran is Tehran.
Is Tehran the largest city in Iran?
Tehran is the capital of Iran 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 Tehran?
Tehran, like the rest of Iran, uses the Iranian rial (IRR, symbol ﷼).
Capitals of neighbouring countries
Capital and country data from open datasets. Full sources on the data page.