The Institute for Interreligious Dialogue is a non-governmental organization devoted to dialog among religions throughout the world.

The institute was founded in 1998, by vice president of Mr. Mohammad Khatami, Mohammad Ali Abtahi for promoting Dialogue Among Religions.^[1] The academic board of the institute is composed of renowned scholars of Zoroastrianism, Christianity, Islam and Judaism as well as several prominent experts on philosophy of religion, mysticism and Comparative religion.

The institute's library of religions has a collection of more than 4000 titles of professional books of religions in different languages.^[2]