The Iraqi Arab Socialist Union (Arabic: الاتحاد الاشتراكى العربى العراقي‎‎, Al-Ittiḥād Al-Ištirākī Al-ʿArabī Al-Iraqi) was a political party in Iraq based on the principles of Nasserist Arab socialism. It was a sister party to the Arab Socialist Union parties that sprung up in a number of Arab countries.