The 1970 Vuelta a España was the 25th Edition Vuelta a España, taking place from 23 April to 12 May 1970. It consisted of 19 stages over 3,568 km (2,217 mi), ridden at an average speed of 39.85 km/h (24.76 mph). The race revealed Augustín Tamames as a contender for the future at the Vuelta as Tamames riding in his first Vuelta held the race lead in the final week until the final individual time trial when Luis Ocaña rode himself into the lead. Ocaña had finished runner up in the previous edition of the race and won the two time trials in the 1970 Vuelta. It would be Ocaña's only win in the Spanish race.