Khalid Sheikh Mohammed

Khalid Sheikh Mohammed (born 14 April 1965; Urdu: خالد شیخ محمد; sometimes also spelled Shaykh; and known by at least 50 pseudonyms including his initials KSM) is a Kuwaiti-born Pakistani militant, and the former head of propaganda for al-Qaeda. As of 2026, he is held by the United States at the Guantanamo Bay detention camp under terrorism-related charges. He was named as "the principal architect of the 9/11 attacks" in the 2004 9/11 Commission Report.