The Islamic Supreme Council of Iraq (ISCI or SIIC), (previously the party was known as the Supreme Council for the Islamic Revolution in Iraq (SCIRI)) is an Iraqi Shia Islamist Iraqi political party. It was established in Iran in the 1980s and today its political support comes from Iraq's Shi'a Muslim community.
Prior to his assassination in August 2003, SCIRI was led by Ayatollah Mohammed Baqir al-Hakim; afterwards it was led by the ayatollah's brother, Abdul Aziz al-Hakim. After Abdul Aziz al-Hakim's death in 2009 his son Ammar al-Hakim became the group's new leader. In light of its gains in the three 2005 elections and government appointments, the Supreme Iraqi Islamic Council became one of Iraq's most powerful political parties and was the largest party in the Iraqi Council of Representatives until the 2010 Iraqi elections, where it lost support due to Nuri Al-Maliki's political party rise. Today the party is led by another member of the Hakim family, Sayyid Ammar al-Hakim.
Previously ISCI's militia wing was the Badr Brigade, where the party used it during the Iraq Civil War of 2006-2007. After the civil war, Badr Brigade turned into a political force of itself and left ISCI, although the two continue to be part of a coalition in Iraq's parliament. After the departure of Badr Brigade, ISCI created a new militia called the Knights of Hope.