Abdulaziz al-Omari, Saudi Arabian terrorist, hijacker of American Airlines Flight 11 (d. 2001)
Abdulaziz al-Omari (Arabic: عبد العزيز العُمري, ʿAbd al-ʿAzīz al-ʿUmarī, also transliterated as Alomari or al-Umari; May 28, 1979 – September 11, 2001) was a Saudi terrorist who was one of five hijackers of American Airlines Flight 11 as part of the September 11 attacks. Prior to the terrorist attack, Omari was an airport security guard and imam.

Omari arrived in the United States in June 2001, on a tourist visa, obtained through the Visa Express program. On September 11, 2001, Omari boarded American Airlines Flight 11 and assisted in the hijacking of the plane, which was crashed into the North Tower of the World Trade Center, as part of the coordinated attacks.