Luis Muñoz Marín in the context of "Puerto Rico Constitution Day"

The Constitution of the Commonwealth of Puerto Rico (Spanish: Constitución del Estado Libre Asociado de Puerto Rico, lit. 'Constitution of the Free Associated State of Puerto Rico') is the primary organizing law for the unincorporated U.S. territory of Puerto Rico, describing the duties, powers, structures, and functions of the local government of Puerto Rico and its relation with the U.S. in nine articles. Established under the Puerto Rico Federal Relations Act of 1950, it was approved by the residents of the archipelago and island in a constitutional referendum on March 3, 1952, ratified by the U.S. Congress as per Pub. L. 82–447 on July 3, 1952, and proclaimed into effect by Governor Luis Muñoz Marín on July 25, 1952, which is celebrated as Constitution Day. As the constitution of a U.S. territory, it is bound by the U.S. Constitution.

The Constitution of Puerto Rico established the Commonwealth of Puerto Rico, which succeeded the insular government that operated under two organic acts: the Foraker Act from 1900 to 1917 and the Jones–Shafroth Act from 1917 to 1952. With the ratification of the constitution in 1952, the full authority and responsibility for the local government of Puerto Rico was vested in the residents of Puerto Rico, resulting in complete self-governance within the archipelago and island.

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.

Luis Muñoz Marín International Airport (Spanish: Aeropuerto Internacional Luis Muñoz Marín) (IATA: SJU, ICAO: TJSJ, FAA LID: SJU), previously known as Isla Verde International Airport (Spanish: Aeropuerto Internacional de Isla Verde), is the main international airport of Puerto Rico serving the capital municipality of San Juan and its metropolitan area since 1955. Named after Luis Muñoz Marín, the first popularly elected governor of the archipelago and island, the 1,600 acre (647 ha) airport is located in the beachfront resort district of Isla Verde in the municipality of Carolina, about 4 to 7 miles (6.4 to 11.3 km) east of the Milla de Oro financial district in Hato Rey barrio, Condado resort area and Isla Grande secondary airport in Santurce barrio, and Old San Juan historic quarter in San Juan Islet. SJU processed 13,247,382 total passengers in 2024, making it the busiest airport in Puerto Rico and the insular Caribbean.

Handling 93% of passenger flow and 90% of air cargo into Puerto Rico, Luis Muñoz Marín International Airport is the 39th busiest airport by passenger enplanement, 38th by total passenger traffic, 24th by international passenger traffic, and 23rd by cargo throughput in the United States and its territories. It is also the 46th busiest airport in North America and the 15th busiest airport in Latin America by total passenger traffic.