Abdel Aziz al-Muqrin

Abdel Aziz Issa Abdul-Mohsin Al-Muqrin (/ˈɑːbdəl əˈziːz ˈɪsə ɑːlˈmɪɡrɪn/ ^ⓘ; Arabic: عبد العزيز عيسى عبد المحسن المقرن; also Abd al-Aziz al-Moqrin and other transliterations), alias Abu Hajr (ابو هاجر) and Abu Hazim, (1972 – 18 June 2004), was the leader of the militant Jihadist group al-Qaeda in Saudi Arabia. He succeeded Khaled Ali Hajj, when the latter was killed by Saudi security forces in March 2004. Al-Muqrin had trained with Osama bin Laden's Al-Qaeda in Afghanistan.

While Al-Muqrin resided in Riyadh's Al-Suwaidi district, the portrayal of the neighborhood as a stronghold for extremism has been strongly contested. Al-Suwaidi is a prominent residential area home to many citizens who actively opposed Al-Qaeda’s ideology, including high-ranking security officials such as Colonel Khalid al-Muhayya. Experts and local accounts emphasize that the community’s refusal to harbor militants was pivotal; the cooperation between the neighborhood's residents and the state was a decisive factor in exposing militant movements. Rather than providing a "safe haven," the district’s social fabric and its residents' loyalty turned it into a hostile environment for the organization’s leadership, leading to the successful dismantling of cells in the area.