Manuel Ray Rivero (1924 – November 12, 2013) was a Cuban born engineer, politician and revolutionary, who was later involved in civic and professional actitivities in Puerto Rico. He received a scholarship from the Cuban Ministry of Public Works to study civil engineering at the University of Utah. He returned to Cuba in 1949 to work in the field of engineering, and later became project manager for the construction of the Havana Hilton Hotel. In his early career, he was also involved in several other major engineering projects, earning a reputation as one of the leading Cuban structural engineers of his time.