Musa Kazim Pasha al-Husayni (Arabic: موسى كاظم الحسيني, Musa Kazem al-Ḥussaynī) (1853 in Jerusalem – 27 March 1934) held a series of senior posts in the Ottoman administration. He belonged to the prominent al-Husayni family and was mayor of Jerusalem (1918-1920). He was dismissed as mayor by the British authorities and became head of the nationalist Executive Committee of the Palestine Arab Congress from 1922 until 1934. His death was believed to have been caused by injuries received during an anti-British demonstration.
Born in Jerusalem, as a boy Musa Kazim was sent to Istanbul and attended the Maktab Malkiya (State School) and graduated third amongst students from all over the Ottoman Empire. His first posting was in the Department of Health, but he was quickly promoted in an exceptionally successful career and was given the title Pasha. He became Governor of a series of Ottoman municipalities and regions. These included Safed (Israel), Akkar (Lebanon), Irbid (Jordan), Asir (Yemen), Najd (Arabia), Thalis (Turkey), Hauran (Syria). His highest position was as Governor of the al-Muntafaq region of Iraq. His status can be judged by his purchase in 1872 of 1,000 acres of fertile land around Jericho, amounting to two thirds of the farm land in the area. In 1905 he was the governor (qaymaqam) of Jaffa. His career was spanned by the reign of Sultan Abdul Hamid II at a time when the empire was being challenged by expanding European powers and it ended when he retired on the eve of World War I.