Biography.guide
Home › People › Politician › Pedro Opaso
Portrait of Pedro Opaso

Pedro Opaso

1876 – 1957

Chilean politician

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About Pedro Opaso

Lived 1876 – 1957 (aged 80). Pedro Opaso was a Chilean politician, military personnel and physician.

Pedro Opaso Letelier (20 July 1876 – 9 April 1957) was a Chilean politician and provisional vice president of Chile in 1931. He also was senator from 1924 to 1949.

He was born in Talca, the son of Ursicino Opaso and Margarita Letelier. He completed his studies in his native city, and then attended the Universidad de Chile, where he became a physician. He started his political career as the first mayor of the city of Río Claro. In 1920 Opaso was named minister in several occasions as a representative of the Democratic Liberal Party. He was elected a deputy for Curicó (1921–1924) and a Senator for Talca (1924–1930) and Talca, Linares and Curico (1930–1932).

At the time of the collapse of the first administration of Carlos Ibáñez del Campo in 1931, he was the President of the Senate. As such he took over as provisional vice president. He assumed on July 26, and that same night he formed his cabinet, headed by Juan Esteban Montero as interior minister and Pedro Blanquier, the other key player, as Finance minister.

When the ministers arrived on the next morning, Opaso resigned by decree on Montero. His entire administration had lasted less than 24 hours. The speed he demonstrated to get rid of the power earned him the nickname of The Relayer , that accompanied him till his death.

After his very brief administration, he was elected Senator for Curicó, Talca, Maule y Linares (1933–1949) and again President of the Senate in 1944. He died in Santiago in 1957.

Biography Pedro Opaso Letelier was born in Talca in 1876, son of Ursicinio Opaso Silva and Margarita Letelier Silva. He married Sara Cousiño Talavera, and they had five children: Raquel, Víctor, Sara, Pedro and Enrique.

Opaso completed his studies at the Liceo de Talca and later attended the Faculty of Medicine of the University of Chile. After finishing his professional training, he devoted himself primarily to agricultural activities.

He also held positions in economic and financial institutions, serving as counsellor of the State Railways and the Caja de Crédito Agrario, and as president of Banco de Talca.

Political career Opaso began his public life as mayor of Río Claro. He was appointed Minister of War and Navy, serving from 16 June to 5 July 1920; concurrently, he acted as interim Minister of Industry and Public Works between 23 June and 1 July 1920, during the administration of Arturo Alessandri. On 5 October 1925, Opaso signed the agreement by which political parties proclaimed Emiliano Figueroa Larraín as sole candidate for the presidency of the Republic.

He was member and president of the Liberal Democratic Unionist Party, a faction of the Liberal Democratic Party. In 1930, Opaso became president of the Liberal Unido Party, and in 1939 he presided over its party convention.

Opaso was elected deputy for Talca for the period 1921–1924, serving as substitute member of the Permanent Commission of Elections and member of the Permanent Commissions of Budget and Government. Congress was dissolved on 11 September 1924 by decree of the Government Junta.

Senator He was elected senator for Talca for the period 1924–1930, serving on the Permanent Commissions of Legislation and Justice, and Agriculture, Industry and Railways; and as substitute member of the Permanent Commissions of War and Navy and Budget.

Opaso was reelected senator for the Sixth Provincial Grouping of "Talca, Linares and Maule" for the period 1926–1930. He served on the Permanent Commission of Public Works and Communications, which he presided. On 15 May 1930 he was provisional president of the Senate, and from 26 May 1930 to 9 January 1933 he served as President of the Senate of Chile.

He was reelected senator for the same grouping for the period 1930–1938. As President of the Senate, Opaso served as Vice President of the Republic from 26 to 27 July 1931, handing over power to the Minister of the Interior, Juan Esteban Montero. The revolutionary movement of 4 June 1932 decreed the dissolution of Congress on 6 June 1932.

Opaso was reelected senator for the Sixth Provincial Grouping of "Talca and Maule" for the period 1933–1941, later incorporating "Curicó and Linares" into the grouping. He served as substitute member of the Permanent Commissions of Public Works and Communications and Labor and Social Welfare, and member of the Permanent Commission of Internal Police. In the latter stage of this term, Opaso again joined the Permanent Commission of Public Works and Communications, which he presided.

He was reelected senator for the reformed Sixth Provincial Grouping of "Curicó, Talca, Maule and Linares" for the period 1941–1949. Opaso served as President of the Senate of Chile from 23 to 31 May 1944. During this term, he was member of the Permanent Commissions of Public Works and Communications and Internal Police and Regulations, and substitute member of the Permanent Commission of Agriculture and Colonization.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Birth century
Nationality
Education
University of Chile
Positions held
Deputy of Chile, President of the Senate of Chile, President of Chile
Also known as
Pedro Opaso Letelier

People in Pedro Opaso's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Pedro Opaso's

Frequently asked questions

Who was Pedro Opaso?

Chilean politician (1876-1957)

When was Pedro Opaso born?

Pedro Opaso was born on 20 July 1876 in Talca.

When did Pedro Opaso die?

Pedro Opaso died on 9 April 1957 in Santiago.

What was Pedro Opaso's occupation?

Pedro Opaso was a politician, military personnel and physician.

What nationality was Pedro Opaso?

Pedro Opaso was Chilean.

Sources & further reading

· Wikipedia: Pedro Opaso

· Wikidata: Q561586

· DBpedia: Pedro Opaso

Cite this page

APA: Biography.guide. (2026). Pedro Opaso. https://biography.guide/pedro-opaso/

MLA: "Pedro Opaso." Biography.guide, https://biography.guide/pedro-opaso/.

Chicago: "Pedro Opaso." Biography.guide. https://biography.guide/pedro-opaso/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

Page generated 2026-09-27 05:02 UTC