Juan Oropeza Riera (24 April 1906 – 29 November 1971) was a Venezuelan lawyer, diplomat, writer, educator and political scientist. He was born in Carora in the state of Lara, and was the younger brother of pediatrics pioneer, Pastor Oropeza Riera. In 1944, he married Venezuelan Alicia Sosa in the state of Sonora, Mexico, in 1944. After the coup d'état that ousted Isaias Medina Angarita, he became the rector of the Universidad Central de Venezuela (Central University of Venezuela) and was subsequently appointed Venezuela's ambassador to the United Kingdom under President Rómulo Gallegos's term.