The 12th Vuelta a España (Tour of Spain), a long-distance bicycle stage race and one of the three grand tours, was held from 26 April to 12 May 1957.

It consisted of 16 stages covering a total of 2,967 km (1,844 mi), and was won by Jesús Loroño.

[1] Vicente Iturat won the points classification and Federico Bahamontes won the mountains classification.

General classification(la roja) Points classification(jersey verde) Mountains classification(jersey puntos azules) Young rider classification(jersey blanco) Team classification(clasificación por equipos) Combativity award