Khaled El-Masri (also Khalid El-Masri and Khaled Masri, Levantine Arabic pronunciation: [ˈxaːlɪd elˈmɑsˤɾi, -ˈmɑsˤɾe], Arabic: خالد المصري) (born 29 June 1963) is a German, Lebanese and French citizen who was mistakenly abducted by the Macedonian police in 2003, and handed over to the U.S. Central Intelligence Agency (CIA). While in CIA custody, he was flown to Afghanistan, where he was held at a black site and routinely interrogated, beaten, strip-searched, sodomized, and subjected to other cruel forms of inhumane and degrading treatment and torture. After El-Masri held hunger strikes, and was detained for four months in the "Salt Pit", the CIA finally admitted his arrest was a mistake and released him. He is believed to be among an estimated 3,000 detainees, including several key leaders of al Qaeda, whom the CIA captured from 2001 to 2005, in its campaign to dismantle terrorist networks.

In May 2004, the U.S. Ambassador to Germany, Daniel R. Coats, convinced the German interior minister, Otto Schily, not to press charges or to reveal the program. El-Masri filed suit against the CIA for his arrest, extraordinary rendition and torture. In 2006, his suit El Masri v. Tenet, in which he was represented by the American Civil Liberties Union (ACLU), was dismissed by the United States District Court for the Eastern District of Virginia, based on the U.S. government's claiming the state secrets privilege. The ACLU said the Bush administration attempted to shield its abuses by invoking this privilege. The case was also dismissed by the Appeals Court for the Fourth Circuit, and in December 2007, the United States Supreme Court declined to hear the case.