This list of governors of Puerto Rico includes all persons who have held the office of Governor of Puerto Rico since its establishment under the rule of the Spanish Empire (1508–1898) to the present under the sovereignty of the United States (1898–present).
The archipelago and island of Puerto Rico was annexed by the United States during the Spanish-American War in 1898, ending 390 years of active rule by the Spanish Empire, which began the European exploration, colonization, and settlement of the main island under conquistador Juan Ponce de León in 1508. Ponce de León was the first person to hold the title and office of governor by orders of King Ferdinand II of Aragon in 1509. The governor remained an appointee of the Spanish Crown during Spanish rule, and was an appointee of the President of the United States during American rule until 1948, when the residents of Puerto Rico began to popularly elect the governor, starting with Luis Muñoz Marín, who took office in 1949.