Religion in Iran is dominated by the Twelver Shia branch of Islam, which is the official state religion and to which about 90% to 95% of Iranians belong. About 4% to 8% of Iranians belong to the Sunni branch of Islam, mainly Kurds and Iran's Balochi Sunni. The remaining 2% are non-Muslim religious minorities, including Bahá'ís, Mandeans, Hindus, Yezidis, Yarsanis, Zoroastrians, Jews, and Christians.
The latter three minority religions are officially recognized and protected, and have reserved seats in the Majlis (Parliament). However the Bahá'í Faith, Iran's largest religious minority, is not officially recognized, and has been persecuted during its existence in Iran. Since the 1979 revolution the persecution of Bahá'ís has increased with executions, the denial of civil rights and liberties, and the denial of access to higher education and employment.
Hinduism in Iran has a history stretching back to the Middle Ages. Presently, Hindus are known to travel to Iran, but the vast majority consist of migrant workers from India. Out of Iran's population of 68,017,860, there are 68,017 recorded Hindus, making them 0.1% of the total population. Some of the poetry of Sohrab Sepehri shows Buddhist influence, and another major contemporary poet, Ahmad Shamlou, translated a book of Japanese haiku poetry into Persian
