The Badr Organization, previously known as the Badr Brigades or Badr Corps, is an Iraqi Shia Islamist political party and paramilitary organization headed by Hadi al-Amiri. The Badr Brigade, formed in 1982 and led by Iranian officers, served as the military arm of the Supreme Council for Islamic Revolution in Iraq (SCIRI), a Shia Islamic party based in Iran. The Badr Brigade was created by Iranian intelligence and Shia cleric Mohammad Baqir al-Hakim with the aim of fighting Saddam Hussein's regime during the Iran–Iraq War. Since the 2003 US-led invasion of Iraq most of the Badr Brigades' fighters have entered the new Iraqi army and police force. Politically, Badr Brigade and SCIRI were considered to be one party since 2003, but have now unofficially separated with the Badr Organization now an official Iraqi political party. Badr Brigade forces, and their Iranian commanders, have come to prominence in 2014 fighting the Islamic State of Iraq and the Levant (ISIL) in Iraq. It is a part of the Popular Mobilization Forces.

The Islamic Supreme Council of Iraq is a Shia Islamist political party in Iraq. It was established in Iran in 1982 by Mohammed Baqir al-Hakim and changed its name to the current Islamic Supreme Council of Iraq in 2007. Its political support comes from Iraq's Shia Muslim community.