Gonzalo Fernando Blumel Mac-Iver (born 17 May 1978) is a Chilean politician, civil environmental engineer and economist who served as Minister of the Interior and Public Security of Chile during Sebastián Piñera second government (2018–2022).

He is the son of Juan Enrique Blumel Méndez[1] – grandson of the German explorer Santiago Blümel and Rosa Ancán, daughter of a Mapuche lonko from Nueva Imperial[2] – and Emma Francisca Mac-Iver Prieto, great-granddaughter of Enrique Mac Iver (politician of Radical Party of Chile's liberal faction) and of Emma Ovalle Gutiérrez, granddaughter of Chilean President José Tomás Ovalle (1830–1831).

He began his career in 2001 as a researcher at Pontificia Universidad Católica de Chile Center for the Environment of the Department of Industrial Engineering.

Later, he worked as a researcher for the environment program of Libertad y Desarrollo, right–wing think tank linked with libertarian conservatism ideas then represented by the party Independent Democratic Union (known in Spanish for his acronym: «UDI»), organization promoted by Augusto Pinochet dictatorship through his ideologist: the lawyer Jaime Guzmán (UDI founder).

Once finished Piñera's first government, he was the CEO of Avanza Chile Foundation as well as he taught lessons also at PUC, his alma mater, or Universidad del Desarrollo (UDD).