Susana Myrta Ruiz Cerutti (18 November 1940 – 24 June 2024) was an Argentine 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.

[4] Ruiz Cerutti then resumed the post of Secretary of State until 1991, when she was appointed Argentine Ambassador to Switzerland: as her credentials were accepted in Liechtenstein.

[3] In November 2000, she was appointed Secretary for Foreign Policy, replacing Enrique Candioti, during the presidency of Fernando de la Rúa.

[6][7][8] She was the candidate favored by the United Nations Security Council in November 2014 to take a place as judge at the International Court of Justice, but the General Assembly's choice of Patrick Lipton Robinson prevailed in the final vote.

[11][12] For her work resolving the "Laguna del Desierto" boundary dispute with Chile, Ruiz Cerutti was awarded the Pro Ecclesia et Pontifice (1985), and the Order of St. Gregory the Great (1996) from Pope John Paul II.