The majority and state religion of Iran is Shi'a Islam.

Out of Iran's population of 68,017,860, there are 68,017 recorded Hindus, making them 0.1% of the total population (The percentage of Hindu population of Iran was taken from the United States Department of State's International Religious Freedom Report 2004 ).

Prior to the Iranian Revolution of 1979, many Hindu-based missions that proselytize such as the International Society for Krishna Consciousness and Transcendental meditation, had locations in Iran. A.C. Bhaktivedanta Swami Prabhupada traveled to Tehran in March 1975 and August 1976. After 1979, these said locations have been abandoned.

Hindus are known to travel to Iran, but the vast majority consist of migrant workers from India. This situation is similar across the Middle East, and information in that respect can be found in Hinduism in Arab states.

Although some Hindu converts in Iran have allegedly stayed since 1979, it is important to note that since conversion from Islam to another religion is apostasy punishable by death sentence in Iran, these remaining converts,