Date National Holiday

March 21-25^th NOROOZ (New Year's  holidays ).

April 2^nd, 13^th Day of now Ruz. On this day everyone stays out of doors thus repulsing evil according to an ancient tradition  

April 1^st  Islamic Republic Day

June 4^th Death of Imam Khomeini

June 5^th National Uprising, 1963

February 11^th  Victory of Islamic Revolution

March 19^th 1950 Oil Industry Nationalized,

RELIGIOUS HOLIDAYS

13^th Rajab Iman Ali's Birthday.

27^th Rajab Mission of Holy Prophet.

15^th Sha'ban Bithday of Twelfth Imam

21^st Ramazan Imam Ali's Martyrdom.

1^st Shavval End of Fasting Month.

25^th Shavval Martyrdom of Imam Saadeq

11^th Zi-Qa'deh Birthday of Imam Reza

10^th Zi-Hajeh The Festival of Sacrifices (Qadir)

9^th Moharram Taasou'a

10^th Moharram Ashura

20^th Safarr Arba'in-e Hosseini

28^th Safar Death of Prophet, Martyrdom of Imam Hassan.

17^th Rabi ol-Avval Birth of Prophet and Imam Saadeq.

Christian, Jewish, and Zoroastrian minorities have their own holidays.
December 25 (Christmas) is not a national holiday in Iran.