The Karakalpak Autonomous Soviet Socialist Republic (Karakalpak ASSR; Karakalpak: Қарақалпақстан АССР, Qaraqalpaqstan ASSR; Uzbek: Қорақалпоғистон АССР, Qoraqalpog‘iston ASSR; Russian: Каракалпакская АССР, Karakalpakskaya ASSR), also known as Soviet Karakalpakstan or simply Karakalpakstan, was an autonomous republic within the Soviet Union.

On 14 December 1990, Karakalpak ASSR declared state sovereignty over the Soviet laws.

Uzbekistan declared independence on 31 August 1991 after the events of the failed coup while Karakalpak ASSR was renamed to and re-established as the Republic of Karakalpakstan on 21 December 1991.

The new constitution was adopted on 8 December 1992, thus making Karakalpakstan as an autonomous republic within Uzbekistan.

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