Iraqi festival customs stem from the country's role as the cradle of civilization and its deep Islamic faith practiced by over 95% of the population. Major celebrations like Eid al-Fitr and Eid al-Adha follow the Islamic lunar calendar and involve prayer, feasting, and gift-giving to strengthen family and social bonds. Regional and ethnic festivals such as Nowruz (Kurdish New Year) demonstrate Iraq's cultural pluralism and pre-Islamic heritage spanning thousands of years.
Iraq's festival traditions were shaped by Mesopotamian religious practices dating back to ancient Sumer and Babylon, which influenced how communities marked seasonal changes and honored deities. Islamic conquest in the 7th century integrated Arab and Islamic customs while preserving some pre-Islamic elements, creating a unique syncretic celebration culture. Ottoman rule and modern nation-building further influenced how Iraqis observe holidays, incorporating both formal state commemorations and intimate family gatherings.
Shia-majority southern Iraq observes Ashura with elaborate processions and mourning rituals honoring Imam Hussein, while Sunni regions emphasize Eid celebrations with different prayer traditions. Kurdish communities in the north celebrate Nowruz with bonfires and traditional dances, maintaining pre-Islamic spring festival customs distinct from Arab Islamic observances.