Guadalupe Valdez San Pedro (b. Mexico City, 22 September 1957) is a Dominican Republic politician.

After the fall of Rafael Trujillo’s dictatorship in 1961, Lucía San Pedro moved to Santo Domingo with her children, including Guadalupe, to rejoin her husband.

She also earned her Master's Degree in Higher Education in 1987 and taught for a short time at the university.

During her time, she supported the creation of Parliamentary Fronts Against Hunger (FPH) in Latin America and the Caribbean.

In 2016, Valdez was appointed as the "Zero Hunger" ambassador for Latin American and the Caribbean by the Food and Agriculture Organisation of the United Nations (FAO).