Giulio Rubini (born 24 April 1987) is an Italian former rugby union international.
A utility back from Frascati, Rubini twice won the Coppa Italia title with Parma and in 2009 made four Test appearances for Italy. His debut came in Italy's Five Nations match against Scotland, coming on off the bench to play at fullback. He started on the wing for subsequent matches against Wales and France. Having kept his place in the squad for the Australian tour, Rubini featured in the second of the two Test matches, which was held in Melbourne.
Rubini's elder brother is rugby player and television chef Gabriele Rubini.