Ibrahim Hassan Tali al-Asiri (Arabic: ??????? ??? ???? ????????; April 18, 1982 – 2017) was a citizen of Saudi Arabia suspected of being chief bomb-maker of al-Qaeda in the Arabian Peninsula.
He was reported to have been responsible for making the bombs used by his brother Abdullah al-Asiri in his suicide bombing, the 2009 Christmas Day bomb plot, the 2010 cargo plane bomb plot, and the May 8th 2012 Terror Plot.