| Country: | Chile |
| Constituent Unity | |
| Native Name: | Unidad Constituyente |
| Leader1 Title: | Party leaders |
| Leader1 Name: | Álvaro Elizalde (PS) Natalia Piergentili (PPD) Carmen Frei (PDC) María Ignacia Gómez (CIU) Patricio Morales (PL) |
| Predecessor: | Progressive Convergence |
| Successor: | New Social Pact |
| Ideology: | Third Way Factions: Social liberalism Social democracy Christian democracy Progressivism |
| Position: | Centre to centre-left |
| Headquarters: | Santiago de Chile |
| Colours: | Purple Cyan |
| Affiliation1 Title: | Member parties |
| Affiliation1: | Socialist Party Party for Democracy Radical Party Citizens Liberal Party New Deal Progressive Party |
| Seats1 Title: | Chamber of Deputies |
| Seats2 Title: | Senate |
| Seats3 Title: | Regional Governors |
| Seats4 Title: | Constitutional Convention[1] |
| Seats5 Title: | Mayors |
Constituent Unity (es|Unidad Constituyente pronounced as /es/, UC) was a political alliance in Chile. It included the former members of the Concentration of Parties for Democracy (the Christian Democratic Party, Radical Party, Socialist Party, and Party for Democracy), plus the Progressive Party and Citizens.
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).[2]
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).[3]
On August 23, the last day to formalize the pacts and register candidacies for the general election, the Progressive Party was excluded from the candidacy pact due to the registration of the presidential candidacy of Marco Enríquez-Ominami; due to this, the other parties of the Constituent Unity registered the list called "New Social Pact".[4] [5] [6]