Susana Myrta Ruiz Cerutti (born 18 November 1940) is an Argentinian lawyer, diplomat and politician, who occupied the position of Minister of Foreign Affairs and Worship (canciller) during the presidency of Raúl Alfonsín, from 26 May to 8 July 1989. This made her the first woman in Argentina's history to reach the post of foreign minister. She previously served as deputy foreign minister from 1987 to 1989, when she became foreign minister, and later held other positions in that Ministry. During her diplomatic career she was also Argentinian ambassador to Switzerland, Liechtenstein and Canada.