Luis Barros Borgoño (American Spanish: [lwis 'ßaros ßo?'?o?o]; March 26, 1858 – July 26, 1943) was a Chilean politician who served as Vice President of Chile in 1925.
Born in Santiago, he was son of Manuel Barros Arana and Eugenia Borgoño Vergara.
He graduated as a lawyer in 1880, held a position in the Supreme Court in 1884, was Minister of War and Navy on three occasions (1890, 1892 and 1895–96), was Minister of Foreign Affairs twice (1894 and 1918) and Finance Minister in 1901.
As the conservative candidate in the Chilean presidential election of 1920, he faced the liberal Arturo Alessandri and was defeated by a very slim margin (he actually obtained more popular votes than Alessandri).
When Alessandri resigned again on October 1, 1925 Barros occupied the Vice-Presidency until December 23 of that same year, when Emiliano Figueroa took possession.
Barros was also an author who focused on history.
He wrote several volumes including The Muzzi Mission, a Life of Admiral Patricio Lynch and Mission in the Plata, in which he defended his uncle, Diego Barros and his participation in the negotiations with Argentina over the Patagonia.