1905 in Argentina

Incumbents

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

Governors

• Buenos Aires Province: Marcelino Ugarte
• Cordoba: José Vicente de Olmos
• 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

January

• 17 January – Guillermo Stábile, football player and manager
• 25 January – Corina del Parral, writer, poet, singer, and composer, First Lady of Ecuador

February

• 22 February - Luis Sandrini, actor

July