Musa ibn Bugha al-Kabir (died 877 CE) was an Abbasid military leader of Turkic origin. Musa was the son of Bugha al-Kabir, one of the leading Turkish generals under Caliph al-Mu'tasim (r. 833–842). He may have participated in or at least organized the assassination of Caliph al-Mutawakkil in 861. Upon Bugha's death in 862, Musa succeeded his father on his offices, and through his close association with the vizier and regent Abu Ahmad al-Muwaffaq, he became the most powerful general of the Abbasid Caliphate from 870 until his own death in 877. His sons Ahmad, Muhammad and al-Fadl likewise became senior military figures of the Caliphate, especially against the Zanj Rebellion.