Alfonso de Urresti

Alfonso Arturo de Urresti Longton (Viña del Mar, 7 March 1966) is a Chilean lawyer and politician affiliated with the Socialist Party of Chile (PS).

Since March 2022 he has served as a member of the Senate of Chile, representing the 12th Circunscription of the Los Ríos Region, for the 2022–2030 legislative period. He previously held the same position for the 16th Circunscription between 2014 and 2022, and was a member of the Chamber of Deputies for the former 53rd District from 2006 to 2014.

He was first elected to the Chamber of Deputies of Chile in the 2005 elections for the 53rd District (Corral, Lanco, Máfil, Mariquina and Valdivia) for the 2006–2010 term, becoming the first Socialist deputy for the area since the democratic transition.

In the 2013 elections, De Urresti was elected to the Senate of Chile for the 16th Circunscription of Los Ríos Region, succeeding former president Eduardo Frei Ruiz-Tagle. In the upper house he has served on the Standing Committees on Constitution, Legislation, Justice and Rules; Public Works; and Environment, as well as on the Bicameral Group on Transparency and Probity. He was vice-president of the Senate between March 2019 and March 2020.

Re-elected in the 2021 elections under the “New Social Pact” coalition, he obtained 39 227 votes (26.4%) — the highest in the region — and continues to serve on the same legislative committees for the 2022–2030 period.