Article 12 of Iraq’s 1925 Constitution protected freedom of expression: “Freedom of expression of opinion, liberty of publication, of meeting together, and of forming and joining associations is guaranteed to all Iraqis within such limits as may be prescribed by law”.

Article 38 of the 2005 Iraq Constitution states that "The State shall guarantee in a way that does not violate public order and morality ... [f]reedom of expression using all means"

References:

Iraq 1925 Constitution: https://constitution.org/1-Constitution/cons/iraq/iraqiconst19250321.html

https://www.constituteproject.org/constitution/Iraq_2005