Kampuchea is Cambodia, a country located in Mainland Southeast Asia.

Kampuchea may also refer to:

• Kingdom of Kampuchea (1945), a puppet state of the Japanese Empire during World War II
• Democratic Kampuchea, an extremist state that existed from 1975 to 1979
• People's Republic of Kampuchea, a communist state that existed from 1979 to 1989

• Kampuchea Revolutionary Army, the armed forces of Democratic Kampuchea
• People's Revolutionary Youth Union of Kampuchea, a youth organisation that existed in Cambodia

• Communist Party of Kampuchea, a communist party that existed in Cambodia from 1951 to 1981
• Party of Democratic Kampuchea, a political party that existed in Cambodia from 1981 to 1993

• Kampuchea Krom (lit. 'Lower Cambodia'), a region consisting the Mekong Delta and Southeast region of Vietnam
• Cambodian (disambiguation)
• Kamboja (disambiguation)
• Kombucha, a fermented beverage