Iranian religions are religions which originated in Greater Iran.
Background
The beliefs, activities, and cultural events of the ancient Iranians in ancient Iran are complex matters. The ancient Iranians made references to a combination of several Aryans and non-Aryan tribes. Aryans, or ancient Iranians, worshiped natural elements such as the sun, sunlight and thunder, but they eventually shifted their attention mostly to a single god, whilst acknowledging others. The Iranian ancient prophet, Zoroaster, reformed Iranian religious beliefs to a form of Henotheism. The Gathas, hymns of Zoroaster's Avesta, brought monotheistic ideas to Persia, while through the Yashts and Yasna, mentions are made to Polytheism and earlier creeds. The Vedas and the Avesta have both served researchers as important resources in discovering early Aryan beliefs and ideas.
ancient Iranian religion: The ancient religion of the Iranian peoples
Zoroastrianism: The present-day umbrella term for the indigenous native beliefs and practices of the Iranian peoples. While present-day Zoroastrianism is monolithic, a continuation of the elite form of the Sasanian Empire, in antiquity it had several variants or denominations, differing slightly by location, ethnic affiliation and historical period. It once had large population and high diversity.
Zurvanism: By the late Achaemenid Empire, Zoroastrianism was also evident as Zurvanism, a monistdualism that had a following as late as the Sasanian Empire.
Manichaeism: A 3rd centuryditheistic gnosticism that may have been influenced by Mandaeism. Manichaens believed in a "Father of Greatness" and observed Him to be the highest deity.
Mazdakism: A late-5th or early-6th century proto-socialist gnosticism that sought to do away with private property.
Some religionists made syncretic teachings of Islam and local Zoroastrianism.
The early Islamic period saw the development of Persian mysticism, a traditional interpretation of existence, life and love with Perso-Islamic Sufi monotheism as its practical aspect. This development believed in a direct perception of spiritual truth, through mystic practices based on divine love.
Behafaridians, an 8th-century cult movement around the prophet Behafarid. Although the movement is considered to have its roots in Zoroastrianism, Behafarid and his followers were executed on charges of harm to both Zoroastrianism and Islam.
Yarsan, a religious order of Yazdanism, which is believed to have been founded in the 16th century. Yazdanism promulgated the belief in a God manifest as one primary and five secondary avatars to form with God the Holy Seven.