Mariano Díaz Díaz (17 September 1939 – 5 April 2014) was a Spanish professional road bicycle racer. In 1967, he won a stage of the 1967 Vuelta a España, and also won the mountains classification. He also competed in the individual road race and team time trial events at the 1964 Summer Olympics.
Mariano Díaz at ProCyclingStats
Mariano Díaz at InterSportStats
Mariano Díaz – official Tour de France results (archive)