Sunni Islam in Iraq (Arabic: الإسلام السني في العراق) is the second-largest sect of Islam in Iraq after Shia Islam. The majority of Iraqi Sunni Muslims are Arabs with the second largest being Kurds. Iraqi Sunni Muslims mainly inhabit the western and northern half of Iraq. Sunni Arabs primarily inhabit the Sunni Triangle, Upper Mesopotamia and the desert areas, such as Al-Anbar Governorate in the Arabian Desert and Syrian Desert. The Sunni Kurds inhabit the mountainous Iraqi Kurdistan region.
In 2003, the United States-based Institute of Peace estimated that around 95% of the total population of Iraq were Muslim, of which Sunnis made up around 40%. A CIA World Factbook report from 2015 estimates that 29–34% of the population of Iraq is Sunni Muslim. According to a 2011 survey by Pew Research, 42% of Iraqi Muslims are Sunni. There were about 9 million Sunni Arabs, 4 million Sunni Kurds and approximately 1.5 million Sunni Turkmens in Iraq (approximately 39%), according to a report published in 2015.
