Valeria Raquel Mazza (Spanish pronunciation: [baˈleɾja ˈmasa], Italian: [ˈmattsa]; born 17 February 1972) is an Argentine model and businesswoman.

[5][6] Once a student of occupational therapy,[7] she also promotes humanitarian causes, and is noted for her work with the Special Olympics, UNICEF, and the Pediatrics Unit of the Austral Hospital in Pilar, Buenos Aires Province.

[10] On 9 May 1998, Mazza married businessman Alejandro Gravier in the Basilica of the Blessed Sacrament in Retiro, Buenos Aires; the wedding reception was held at the Hipodromo Argentino de Palermo with 1,500 guests.

[16] The couple owns Finca Valeria, a countryside vacation property in La Barra, near Punta del Este, Uruguay, where they hold an important party with renowned guests every summer.

[17] In 2008, she and her husband were under investigation by Argentina's Revenue Service, AFIP, for alleged tax evasion for two million US dollars.