Jamal Ja'far Muhammad Ali Al Ibrahim (1 July 1954 – 3 January 2020), known by the kunya Abu Mahdi al-Muhandis, was an Iraqi politician and military commander. At the time of his death, he was deputy chief of the Popular Mobilisation Committee (Al-Hashd Al-Sha'abi). The organisations he oversaw have been reported to have close links to the Quds Force, part of the Armed Forces of the Islamic Republic of Iran.