The Iranian diaspora (collectively known as Iranian expats or expatriates) is the global population of Iranian citizens or people of Iranian descent living outside Iran.
In 2021, the Ministry of Foreign Affairs of Iran published statistics which showed that 4,037,258 Iranians are living abroad, an increase from previous years. However, this number includes people of Iranian ancestry living in the United Arab Emirates, Kuwait, Israel, Turkey and Bahrain whose families left Iran many years, if not many decades, prior to the 1979 revolution. This number also includes people with only partial Iranian ancestry. Over one million of these people and their extended families live in the United States, with anywhere between 100,000 and 500,000 living in countries such as Australia, Canada, Germany, Israel, Sweden, Turkey, and the United Kingdom. Additional communities exist in numerous other countries, including many European nations, China, India, and the United Arab Emirates, along with several other Middle Eastern and Levantine nations. Many of these individuals relocated to other countries following the Iranian Revolution.