Rodolfo Siviero (24 December 1911 – 1983) was an Italian secret agent, art historian and intellectual, most notable for his important work in recovering artworks stolen from Italy during the Second World War as part of the 'Nazi plunder'.
He was born at Guardistallo, the son of Giovanni Siviero, a Venetian non commissioned officer in the Carabinieri and commander of its local station, and his Sienese wife Caterina Bulgarini.
In the 1930s he joined the Servizio Informazioni Militare, Italy's secret service, and became a Fascist in the conviction that only a totalitarian regime could revolutionise and improve the country.
Thanks to his reputation for resistance work, in 1946 Siviero was made 'minister plenipotentiary' by Alcide De Gasperi, President of the Council of Ministers.
Siviero was appointed to that role to direct a diplomatic mission to the Allied military government of Germany to establish the principle of returning Italian artworks looted by the Germans.