Marta Gabriela Michetti (Spanish pronunciation: [ˈmarta ɣaˈβɾjela miˈketi]; born May 28, 1965) is an Argentine politician member of the Republican Proposal (PRO) and Cambiemos coalition. Michetti was Deputy Head of Government in Buenos Aires during the first tenure of Mayor Mauricio Macri. She has served as Senator for Buenos Aires since 2013.