Isnilon Totoni Hapilon (March 18, 1966 – October 16, 2017), also known by the nom de guerre Abu Abdullah al-Filipini ("Abu Abdullah the Filipino"), was a Filipino Islamist militant affiliated with ISIS.
He was formerly leader of Abu Sayyaf Group before its battalions pledged their allegiance to Abu Bakr al-Baghdadi.
An April 2016 issue of ISIS' weekly newsletter Al Naba said that Hapilon had been appointed as "emir of all Islamic State forces in the Philippines".
In the early morning of October 16, 2017, he was killed at the age of 51 by the Philippine military in the Battle of Marawi along with Omar Maute.