An Isfahan inhabitant is an IRANIAN, or an IRANIAN person. The term 'IRANIAN' has seven letters, while the term 'IRANI' has five letters. Isfahan is a city in Iran located about 340 km south of Tehran. It is the capital of Isfahan Province and is Iran's third largest city after Tehran and Mashhad. Isfahan is known for its Persian architecture, including the Imam Mosque, the Sheikh Lotfollah Mosque, and the Chehel Sotoun Palace.