The 5th Vuelta a España (Tour of Spain), a long-distance bicyclestage race and one of the 3 grand tours, was held from May 10 to May 31, 1945. It consisted of 19 stages covering a total of 3,803 km, and was won by Delio Rodríguez.1 Rodríguez also won the points classification and Julián Berrendero won the mountains classification.