There are numerous Iraqi cultures and ethnic groups ranging from the Sunni Arabs to the Shiite Arabs, to the Marsh Arabs, to the Kurds, the Yezidi, the Yarsan, the Turcomans, the Assyrians, the Chaldeans, etc.
An Iraqi. Iraq is home to many cultures and religions, including ethnic Kurds, Shias, Sunnis, and Muslims.
Some do, but not all.
Iraqi
Iraqis is the plural form of Iraqi.
The Iraqi Dinar.
An Iraqi engineer.
The word Iraqi is a proper adjective for people or things from or in Iraq, the country. However, it is also a demonym (noun) for a person from Iraqi (one Iraqi, two Iraqis).
Iraqi insurgency happened in 2003.
Iraqi dinar was created in 1932.
Iraqi University was created in 1989.
Iraqi Airways was created in 1945.
The current Iraqi Constitution, which was approved by Iraqi referendum in 2005 was written by the Iraqi Constitution Drafting Committee. A list of the members of that committee can be found at the link below.