Benjamín Vicuña Luco (born November 29, 1978 in Santiago) is a Chilean actor. He studied theatre at the University of Chile. He is a descendant of Benjamín Vicuña Mackenna, a Chilean historian and politician of Basque and Irish descent.
Vicuña has been in a relationship with Argentine model Carolina Ardohain, better known as Pampita, since July 2005. They have four children together, Blanca, Bautista, Beltrán and Benicio. Their oldest daughter, Blanca, died in 2012.