Boric, leader of the Approve Dignidad coalition, succeeds the outgoing Sebastián Piñera for the period 2022-2026.
The swearing-in that took place in the National Congress in Valparaíso, was attended by several presidents of the region.
Among them Mario Abdo, Pedro Castillo, Alberto Fernández, Luis Abinader and Guillermo Lasso.
The King of Spain Felipe VI was also there.
Boric subsequently swore into his cabinet, made up of a large number of women.