Giulia della Rovere (1531, Casteldurante â 4 April 1563, Ferrara) was an Italian noblewoman.
Guilia was the daughter of Francesco Maria I della Rovere, Duke of Urbino and Eleonora Gonzaga. On 3 January 1549 she married Alfonso d'Este, an illegitimate son of Alfonso I d'Este, Duke of Ferrara, and of Laura Dianti. They had: