1905 in Argentina

Events in the year 1905 in Argentina.

Incumbents

 * President: Manuel Quintana
 * Vice President: José Figueroa Alcorta

Governors

 * Buenos Aires Province: Marcelino Ugarte
 * Cordoba: José Vicente de Olmos (until month unknown)
 * Mendoza Province: Carlos Galigniana Segura then José Néstor Lencinas then Carlos Galigniana Segura

Vice Governors

 * Buenos Aires Province: Adolfo Saldías

Events

 * February 4–8: Argentine Revolution of 1905
 * May 21: demonstration consisting of thousands of workers gathered at Constitution Square and marched from there to the Plaza Lavalle, where the concentration was attacked with bullets and sabers. 2 people are killed and 20 are injured.
 * August 11: attack against Quintana, while his coach went on to Government House, a man fired several times at Quintana. The president's coach continued on and the custody officers arrested the perpetrator, who was a Catalan laborer named Salvador Planas y Virelles, sympathetic anarchist who acted on his own initiative

Births

 * 25 January – Corina del Parral, writer, poet, singer, and composer, First Lady of Ecuador