Pol Pot (born Saloth Sâr; 19 May 1925 – 15 April 1998) was a Cambodian communist revolutionary, politician and a dictator who ruled Cambodia as Prime Minister of Democratic Kampuchea between 1976 and 1979. Ideologically a Maoist and a Khmer ethnonationalist, he was a leading member of Cambodia's communist movement, the Khmer Rouge, from 1963 to 1997, and served as General Secretary of the Communist Party of Kampuchea from 1963 to 1981. His administration converted Cambodia into a one-party communist state and perpetrated the Cambodian genocide.

Born to a prosperous farmer in Prek Sbauv, French Cambodia, Pol Pot was educated at some of Cambodia's most elite schools. Arriving in Paris in October 1949 on an academic scholarship, he later joined the French Communist Party in 1951 while studying at École française de radioélectricité. Returning to Cambodia in 1953, he involved himself in the Khmer Viet Minh organisation and its guerrilla war against King Norodom Sihanouk's newly independent government. Following the Khmer Viet Minh's 1954 retreat into North Vietnam, Pol Pot returned to Phnom Penh, working as a teacher while remaining a central member of Cambodia's Marxist–Leninist movement. In 1959, he helped formalise the movement into the Kampuchean Labour Party, which was later renamed the Communist Party of Kampuchea (CPK). To avoid state repression, in 1962 he relocated to a jungle encampment and in 1963 became the CPK's leader. In 1968, he relaunched the war against Sihanouk's government.