Manuel Luis Quezon y Molina (UK: , US: , Tagalog: [ˈkɛson], Spanish: [maˈnwel ˈlwis ˈkeson i moˈlina]; 19 August 1878 – 1 August 1944), also known by his initials MLQ, was a Filipino lawyer, statesman, soldier, and politician who was president of the Commonwealth of the Philippines from 1935 until his death in 1944. He was the first Filipino to head a government of the entire Philippines and is considered the second president of the Philippines after Emilio Aguinaldo (1899–1901), whom Quezon defeated in the 1935 presidential election.

During his presidency, Quezon tackled the problem of landless peasants. Other major decisions included the reorganization of the islands' military defense, approval of a recommendation for government reorganization, the promotion of settlement and development in Mindanao, dealing with the foreign stranglehold on Philippine trade and commerce, proposals for land reform, and opposing graft and corruption within the government. He established a government in exile in the U.S. with the outbreak of World War II and the threat of Japanese invasion. Scholars have described Quezon's leadership as a "de facto dictatorship" and described him as "the first Filipino politician to integrate all levels of politics into a synergy of power" after removing his term limits as president and turning the Senate into an extension of the executive through constitutional amendments.

Quezon died of tuberculosis in Saranac Lake, New York during his exile. He was buried at Arlington National Cemetery until the end of World War II, when his remains were moved to Manila. His final resting place is the Quezon Memorial Circle.

In 2015, the Board of the International Raoul Wallenberg Foundation bestowed a posthumous Wallenberg Medal on Quezon and the people of the Philippines for reaching out to victims of the Holocaust from 1937 to 1941. President Benigno Aquino III and then-94-year-old Maria Zenaida Quezon Avanceña, the daughter of the former president, were informed of this recognition.