A constitutional referendum was held in South Korea on 21 November 1972.
President Park Chung-hee had suspended the constitution and dissolved the National Assembly in October. Work began almost immediately on a new constitution. The finished product was a severely authoritarian document that dramatically expanded the president's powers and allowed him to run for an unlimited number of six-year terms. For all intents and purposes, the document concentrated all governing power in Park's hands.
According to official figures, the new document was approved by 92.3% of voters, with a turnout of 91.9%. The referendum ushered in the Fourth Republic of South Korea.