The transition to democracy in Chile, also known in Spanish as La Transición ("the transition"), refers to the historical process by which Chile moved away from the military dictatorship led by General Augusto Pinochet, which had ruled the country since the 1973 coup d'état that overthrew President Salvador Allende, and restored a democratically elected government. The dictatorship formally ended on 11 March 1990, when the armed forces handed executive power to Patricio Aylwin, a Christian Democrat elected after the 1988 plebiscite and the 1989 presidential election.

In its narrowest sense, the transition spans only the 1988–1990 period encompassing the plebiscite, the 1989 constitutional referendum and the presidential handover. Historians disagree on whether the process should be considered complete or ongoing. Broader accounts extend it to include the 1998–2006 arrest and prosecution of Pinochet; the 2005 constitutional reforms that removed the dictatorship's remaining authoritarian provisions, which President Ricardo Lagos himself described as marking the transition's conclusion; the growing alternation of left- and right-wing coalitions in the presidency after 2010; the replacement of the binomial voting system with proportional representation in 2017; and the constitutional replacement process launched after the 2019 protests, which produced two rejected draft constitutions, in 2022 and 2023, before Chile restored compulsory voting and, in December 2025, elected the right-wing José Antonio Kast as president.

Unlike many democratic transitions driven either by an outgoing elite or by a popular uprising, Chile's process is often described as an "intermediate" transition, negotiated jointly by the outgoing regime and the democratic opposition. Even as the dictatorship escalated repressive violence in some periods, it simultaneously allowed a gradual liberalization that strengthened civilian institutions and progressively curtailed the political role of the armed forces. Three interlocking factors are generally credited with the shift: renewed economic growth under low inflation, evolving attitudes within the military, and the decision of previously divided political parties to unite in a single broad coalition against Pinochet. Chile had been a democracy before the dictatorship, during the Presidential Republic (1925–1973).

The groundwork for the eventual transition was laid within the dictatorship itself: the 1980 Constitution, which remains in force today, established a schedule for a plebiscite and a return to elected government, and a series of organic constitutional laws implementing that schedule were passed between 1981 and 1990. After voters rejected Pinochet's continuation in office in 1988, the constitution was itself amended in 1989 to ease the process for future amendments, enlarge the Senate, reduce the power of the National Security Council, and equalize the number of civilian and military members on that council.

Background Cold War context Various international and domestic factors led Pinochet to follow the constitutional timetable toward elections. Among them was the changing situation in the Soviet Union, where Mikhail Gorbachev's glasnost and perestroika reforms were paving the way toward the 1989 fall of the Berlin Wall and the end of the Cold War.

South America had been central to the Cold War's Western Bloc–Eastern Bloc division. Following the 1959 Cuban Revolution and the spread of Che Guevara's foco theory, the United States backed anti-communist campaigns across the region, and by the 1970s most South American states were ruled by military juntas: Alfredo Stroessner in Paraguay since 1954, the 1964 coup against João Goulart in Brazil, Hugo Banzer's 1971 takeover in Bolivia, and the 1973 seizure of power by Juan María Bordaberry in Uruguay. A continent-wide "Dirty War" culminated in Operation Condor, a cooperation agreement among Southern Cone security services (and, allegedly, US government bodies) to track and eliminate political opponents. Argentina's military seized power in 1976, and by the early 1980s comparable dictatorships or civil conflicts existed in Bolivia, Nicaragua, Guatemala and El Salvador. Despite a renewed Cold War chill from 1979 to 1985, this pattern began to reverse as the decade wore on, especially after Gorbachev succeeded Konstantin Chernenko as Soviet leader.

Role of the Catholic Church

Pope John Paul II's visit to Chile in April 1987 — during which he traveled to Santiago, Viña del Mar, Valparaíso, Temuco, Punta Arenas, Puerto Montt and Antofagasta — is also cited as a factor in Pinochet's decision. Before the trip, the Pope publicly characterized Pinochet's government as dictatorial, and The New York Times reported that he used unusually forceful language in urging the Chilean church to actively work for a restoration of democracy rather than simply pray for one. While in Chile, he asked the country's 31 Catholic bishops to campaign for free elections. According to biographer George Weigel, the Pope met privately with Pinochet and urged him to open the regime to democracy, reportedly even suggesting he resign.Heraldo Muñoz, The Dictator's Shadow: Life under Augusto Pinochet, p. 183, Basic Books (2008), In 2007, Cardinal Stanisław Dziwisz, who had served as the Pope's secretary, confirmed that John Paul II had asked Pinochet to transfer power to civilian authorities.George Weigel, Biografía de Juan Pablo II – Testigo de Esperanza, Editorial Plaza & Janés (2003), The Pope also visited the offices of the Vicariate of Solidarity, a church-run human-rights and pro-democracy organization, encouraging its staff to continue their work in defense of human rights.Timmerman, Jacobo. Chile: Death in the South, p. 114, Alfred A. Knopf, Inc., 1987. Pinochet later arranged for the two men to appear together on a balcony, a staged photo opportunity that some interpreted as papal endorsement; the trip's organizer, Cardinal Roberto Tucci, said the pontiff had been misled about the venue and was furious about the appearance.

1988 plebiscite and constitutional reform

The 1980 Constitution was drafted under tight military control and provided that, in 1988, the armed forces and national police would jointly nominate a single candidate for an eight-year presidential term, to be ratified by the electorate in a plebiscite; if voters rejected the nominee, presidential and legislative elections would follow the next year. Pinochet's government legalized political parties in 1987 and opened new voter registries; the "No" campaign against his continued rule won the 5 October 1988 vote with 55.99 percent, against 44.01 percent in favor, triggering the presidential and legislative elections held the following year.

1989 constitutional referendum In July 1989, a constitutional referendum followed extended negotiation between the government and the opposition. Voters approved 54 amendments by 91.25 percent, including changes to the constitutional amendment process itself, restrictions on declaring a state of emergency, an explicit guarantee of political pluralism, and stronger protections for democratic participation. Nearly the entire political spectrum backed the reforms; only the small right-wing Avanzada Nacional and a few minor parties opposed them.

Aylwin administration (1990–1994)

The Concertación coalition — uniting the Christian Democratic Party (PDC), the Socialist Party (PS), the Party for Democracy (PPD) and the Social Democrat Radical Party (PRSD) — backed Christian Democrat Patricio Aylwin, who won the December 1989 election with 55.17 percent of the vote (3,850,023 votes), Chile's first democratic presidential contest since Salvador Allende's victory in 1970. Right-wing candidate Hernán Büchi took 29.40 percent, while centrist supermarket magnate Francisco Javier Errázuriz Talavera won 15.05 percent, a result widely seen as having drawn votes away from Büchi.

The Concertación coalition would dominate Chilean politics for the next two decades.

Truth and reconciliation In February 1991, Aylwin's government released the Rettig Report, the product of the National Commission for Truth and Reconciliation established the previous year. The report documented 2,279 confirmed cases of killings and forced disappearances under the dictatorship, a figure disputed by human rights organizations and associations of former political prisoners as an undercount, given both the inherent difficulty of investigating disappearances and the reluctance of intimidated victims to come forward to a police force largely unchanged since the dictatorship. A subsequent inquiry, the 2004 Valech Report, documented nearly 30,000 victims of torture based on testimony from 35,000 people. The Rettig Report also identified major detention and torture sites, including the training ship , the Víctor Jara Stadium, and Villa Grimaldi. Registering victims and prosecuting military personnel for human rights violations remained a central goal of human-rights groups and former political prisoners, many living in exile, well into the 2000s.

Indigenous policy Aylwin's government also created a Comisión Especial de Pueblos Indígenas (Special Commission on Indigenous Peoples), whose findings underpinned Indigenous Law No. 19,253, which took effect on 28 September 1993. The law formally recognized the Mapuche people, along with the Aymara, Atacameña, Kolla, Quechua, Rapa Nui, Yaghan and Kawésqar peoples, as constituent parts of the Chilean nation. Despite this recognition, land disputes and Mapuche claims continued to prompt state repression, including the use of anti-terrorism legislation originally enacted by the military junta.

Civil–military tensions Chile's democratic institutions faced repeated tests during the Aylwin years, since Pinochet remained Commander-in-Chief of the Army until 1998 and continued to act as a de facto leader of the opposition. In December 1990, an investigation by the State Defense Council into Pinochet's eldest son prompted the army to confine itself to barracks and stage exercises outside several cities in an episode known as the Ejercicio de Enlace (or "Pinocheques" affair); tensions eased after three days through talks between Pinochet's aide General Jorge Ballerino and Aylwin's government minister Enrique Correa. The 1991 assassination of UDI senator Jaime Guzmán by the Manuel Rodríguez Patriotic Front produced another flashpoint: mourners jeered government officials at the funeral while cheering Pinochet, who helped carry the senator's casket, and Interior Minister Enrique Krauss briefly offered his resignation, which Aylwin declined. In 1992, the army's telecommunications command was found to have wiretapped a call in which prospective presidential candidate Sebastián Piñera discussed undermining his party rival Evelyn Matthei's candidacy; businessman Ricardo Claro made the intercepted call public on television, in an episode nicknamed the Piñeragate or Kiotazo.

Frei Ruiz-Tagle administration (1994–2000)

Ahead of the 1993 election, the Concertación held primaries pitting Ricardo Lagos (PPD) against Eduardo Frei Ruiz-Tagle (PDC), son of former president Eduardo Frei Montalva; Frei won with 63 percent. On the right, the Alliance for Chile chose Sebastián Piñera of National Renewal over Arturo Alessandri Besa in its own primary, with Alessandri prevailing to become the coalition's candidate. Other contenders included independent José Piñera (6 percent) and ecologist Manfred Max-Neef (5.55 percent) of the Left-Wing Democratic Alternative.