Guillermo Alberto Francos (born 20 April 1950) is a politician and lawyer from Argentina, serving as Minister of Interior for Javier Milei since December 2023 until May 2024 when he was designated Chief of Cabinet to replace Nicolás Posse.

He was elected national deputy in 1997 as a member of the Action for the Republic party, he resigned in September 2000,[1] as he was appointed head of Aeropuertos Argentina 2000.

[3] He was designated as the representative of Argentina to the Inter-American Development Bank by President Alberto Fernández in December 2019.

[4] In August 2023 he resigned from this role to join Javier Milei's campaign team, one week after the results of the 2023 Argentine primary elections were announced.

[7] On 28 May 2024 he was designated Chief of Cabinet of Argentina, after the resignation of Nicolás Posse, and so left the Ministry of Interior.