Arturo Barrios Oteiza

Arturo Barrios Oteíza (born 1 July 1967) is a Chilean politician who serves as deputy.

In December 1997, he was elected president of the Socialist Youth. He later served as Secretary General of the Socialist Party between 2003 and 2005. Subsequently, between 2006 and early 2008, he was a member of the party’s Central Committee.

During the 1990s, he worked as an advisor on youth and social affairs at the Ministry of Planning (MIDEPLAN), the Ministry General Secretariat of the Presidency, and the Ministry of Education.

He has worked as a teacher in various secondary and higher education institutions, teaching subjects such as History of Chile and Constitutional History of Chile. In addition, he has served as an educational advisor for several organizations, including the REDUCA Educational Network, made up of 15 schools belonging to the Municipal Corporation of Peñalolén.

Political career During his university years, he was active as a student leader. Since that time, he has been a member of the Socialist Party of Chile. Between 1993 and 1994, he served as president of the University of Chile Student Federation (FECH).

In the 1993 parliamentary elections, he ran as a candidate for the Chamber of Deputies of Chile for the former 30th District, which included the communes of San Bernardo, Buin, Paine, and Calera de Tango. He was not elected, obtaining 10,920 votes, corresponding to 7.37% of the valid votes cast.

In the 2009 parliamentary elections, he again ran as a candidate for the Chamber of Deputies, this time for the former 10th District, which comprised several communes in the Valparaíso Region. He was not elected, obtaining a total of 12,856 votes, representing 9.4% of the votes cast.

During 2017, he served as territorial campaign manager for presidential candidate Alejandro Guillier.

In June 2022, he became Vice President of the Socialist Party. On 17 April 2025, the Socialist Party designated him to replace Deputy Tomás de Rementería Venegas, who vacated his seat to assume office as senator in replacement of María Isabel Allende Bussi.

He was a candidate for the Chamber of Deputies for the 7th District of the Valparaíso Region in the parliamentary elections of 16 November 2025, representing the Socialist Party within the Unidad por Chile coalition. He was not elected, obtaining 4,913 votes, equivalent to 0.88% of the total votes cast.