The following list is a list of festivals in Iran.
The basis of nearly all of Iranian national festivals are from its Pre-Islamic Zoroastrian era. However, there are some festivals that are celebrated exclusively by Zoroastrians and some with less extent in other communities too.
The majority of Iranian Christians are Armenian-Iranians also known as Parska-Hye who follow the Armenian Apostolic Church, an Oriental Orthodox branch of Christianity. This minority has their very own special festivals and traditions.
There is also a significant minority of Assyrian people who follow the Oriental Orthodox Christian Assyrian Church of the East and the Chaldean Catholic Church, these two church groups also have a minority of Persian followers. The followers of this church have a blend of Persian and Assyrian culture.
Iran has a large and fast growing Christian community gaining popularity amongst Persians. During Christmas times, Christmas trees can be seen from windows in Tehran and north-western provinces. Although Christmas has an official recognition in Iran, it is not a national holiday.
Iranian Jews celebrate all the same holidays as Jews worldwide, but often maintain unique customs in the observance of those holidays. Some more uniquely Iranian traditions include: