Ahmed Salah Said al-Ghamdi (, , also transliterated as Alghamdi) (July 2, 1979 – September 11, 2001) was one of five hijackers of United Airlines Flight 175 as part of the September 11 attacks. Ghamdi was born in Saudi Arabia in 1979. He dropped out of school to fight in Chechnya and was probably sent to train in Al-Qaeda camps in Afghanistan where he would be chosen by Osama bin Laden to participate in the terrorist attacks in America.