Iranian Azerbaijanis () are the ethnic Azerbaijani people of Iran. They are the second largest ethnic group in Iran after the Persians. Most Iranian Azerbaijanis live in the region of Iranian Azerbaijan of northwestern Iran, however they also live in large numbers in the capital Tehran and across the rest of the country. Iranian Azerbaijani communities are also found in the United States of America, Germany, Canada, Turkey, and France. About 98% of Iranian Azerbaijanis are Muslim and about 90% of Iranian Azerbaijanis are Shi'a.