Luis Barros Borgoño (March 26, 1858 – July 26, 1943) was a Chilean politician who served as President of Chile between 1925 and 1930.
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).
He was elect as Senator for Santiago in the 1924 parliamentary elections. However, on September 12, after resignation of the President Alessandri Palma, the Congress was closed by an Military Junta established and lead by the General Luis Altamirano.