Juan Ramón de la Fuente Ramírez (born 5 September 1951 in Mexico City) is a Mexican psychiatrist, academician and politician who has served as the secretary of foreign affairs since 2024 in the cabinet of Claudia Sheinbaum.

He previously served as secretary of health in the cabinet of President Ernesto Zedillo (1994–1999) and as rector of the National Autonomous University of Mexico (UNAM) from 1999 to 2007.

[2] De la Fuente graduated from Medical School of Medicine from the National Autonomous University in 1976 and trained in Psychiatry at the Mayo Clinic in Rochester, Minnesota, United States.

When he returned to Mexico he founded the Clinical Research Unit of the Mexican Institute of Psychiatry and joined the Faculty of UNAM's School of Medicine, where he was appointed Dean in 1991.

In 2024, de la Fuente was appointed Secretary of Foreign Affairs by President Claudia Sheinbaum, taking office on 1 October 2024, following the tenure of Alicia Bárcena Ibarra.