Gabriel Valdés Subercaseaux (July 3, 1919 – September 7, 2011) was a Chilean politician, lawyer and diplomat. Valdes served as the Minister of Foreign Affairs of Chile under President Eduardo Frei Montalva from 1964 to 1970. A vocal opponent of the military dictatorship of Augusto Pinochet, which held power from 1973 to 1990, Valdés worked for Chile's transition to democracy.
Gabriel Valdés died from bronchitis on September 7, 2011, at his home in Santiago, Chile, at the age of 92. He had recently been admitted as a patient at Clínica Alemana for treatment of a long illness.
Gabriel Valdés is the father of Juan Gabriel Valdés, a politician who is a member of the Socialist Party and is today Chile's Ambassador to the United States.