Arthur MacArthur Jr. was a lieutenant general of the United States Army. He became the military Governor-General of the American-occupied Philippines in 1900; his term ended a year later due to clashes with the civilian governor, future-U.S. President William Howard Taft.

The governor-general of the Philippines was the title of the government executive during the colonial period of the Philippines, governed by Mexico City and Madrid (1565–1898) and the United States (1898–1946), and briefly by Great Britain (1762–1764) and Japan (1942–1945). They were also the representative of the executive of the ruling power.