Abu Musab al-Zarqawi (Arabic: أبومصعب الزرقاوي‎, ’Abū Muṣ‘ab az-Zarqāwī, Abu Musab from Zarqa); October 30, 1966 – June 7, 2006), born Ahmad Fadeel al-Nazal al-Khalayleh (Arabic: أحمد فضيل النزال الخلايله‎, ’Aḥmad Faḍīl an-Nazāl al-Ḫalāyla) was a Jordanian militant Islamist who ran a militant training camp in Afghanistan. He became known after going to Iraq and being responsible for a series of bombings, beheadings and attacks during the Iraq War.

He formed al-Tawhid wal-Jihad, in the 1990s, and led it until his death in June 2006. Zarqawi took responsibility, on several audio- and videotapes, for numerous acts of violence in Iraq including suicide bombings and hostage executions. Zarqawi opposed the presence of US and Western military forces in the Islamic world as well as the West's support for and the existence of Israel. In late 2004 he joined al-Qaeda and pledged allegiance to Osama bin Laden. After this al-Tawhid wal-Jihad became known as Al-Qaeda in Iraq (AQI), and al-Zarqawi was given the Al-Qaeda title, "Emir of Al Qaeda in the Country of Two Rivers".

In September 2005, he declared "all-out war" on Shia in Iraq after the Iraqi government offensive on insurgents in the Sunni town of Tal Afar. He dispatched numerous suicide bombers throughout Iraq to attack American soldiers and areas with large concentrations of Shia militias. He is also responsible for the 2005 bombing of three hotels in Amman, Jordan. Zarqawi was killed by two United States Air Force F-16C jets on June 7, 2006 at 14:15 GMT, while attending a meeting in an isolated safehouse approximately 8 km (5 mi) north of Baqubah.