Constituent Unity (Spanish: Unidad Constituyente [uniˈða(ð) konstituˈʝente], UC) was a political alliance in Chile.

This alliance was created in light of the municipal, regional and Constitutional Convention elections, held in May 2021.

For the municipal elections, the alliance ran as two lists: Unity for the Approval (including the former members of Progressive Convergence: PS, PPD and PR) and Unity for Dignity (PDC, PRO and Citizens).

[1] Due to its previous participation as a member of the Broad Front in the primaries for the municipal and regional election, the liberal party and the new deal movement couldn't participate as members of Constituent Unity in those elections.

However, they joined Constituent Unity for the election of members for the Constitutional Convention under the name Lista del Apruebo (List of Approval).