|Part of Khmer Rouge rule of Cambodia|
|Date||17 April 1975 – 7 January 1979 (3 years, 8 months and 20 days)|
|Target||Cambodia's previous military and political leadership, business leaders, journalists, students, doctors, lawyers, Buddhists, Chams, Chinese Cambodians, Christians, intellectuals, Thai Cambodians, Vietnamese Cambodians|
|Genocide, classicide, politicide, ethnic cleansing, extrajudicial killings, torture, famine, forced labor, human experimentation, forced disappearances, deportation, crimes against humanity|
|Deaths||1.5 to 2 million|
|Motive||Anti-Buddhism, anti-Cham sentiment, classism, anti-Christianity, anti-intellectualism, anti-Thai sentiment, anti-Vietnamese sentiment, Islamophobia, Khmer ultra-nationalism, Sinophobia, Marxism-Leninism, Maoism|
The Cambodian genocide (Khmer: ហាយនភាពខ្មែរ or ការប្រល័យពូជសាសន៍ខ្មែរ, French: Génocide cambodgien) was the mass killing of Cambodians by the Khmer Rouge under the leadership of Pol Pot who pushed Cambodia towards communism. It resulted in the deaths of 1.5 to 2 million people from 1975 to 1979. This was a quarter of Cambodia's 1975 population (c. 7.8 million).
To push its goals, the Khmer Rouge emptied the cities and forced Cambodians to relocate to labor camps in the countryside, where mass executions, forced labor, physical abuse, malnutrition, and disease happened.