The Constitutional Convention (Spanish: Convención Constitucional) was the constituent body of the Republic of Chile in charge of drafting a new Political Constitution of the Republic after the approval of the national plebiscite held in October 2020. Its creation and regulation were carried out through Law No. 21,200, published on 24 December 2019, which amended the Political Constitution of the Republic to include the process of drafting a new constitution. The body met for the first time on 4 July 2021. Chilean President Sebastian Piñera said, "This Constitutional Convention must, within a period of 9 months, extendable for an additional 3 months, draft and approve a new constitution for Chile, which must be ratified by the citizens through a plebiscite." It ended its functions and declared itself dissolved on 4 July 2022.
The proposed constitution, which had faced "intense criticism that it was too long, too left-leaning and too radical", was rejected by a margin of 62% to 38% in the 2022 Chilean national plebiscite.