Emanuele Filiberto Duca d'Aosta was an Italian light cruiser of the fourth group of the Condottieri-class, that served in the Regia Marina during World War II.

Duca d'Aosta was built by OTO, Livorno and was named after Emanuele Filiberto, 2nd Duke of Aosta, an Italian Field Marshal of World War I.

The deteriorating world political situation caused this to be cut short after visits to the Caribbean and South America, and the ships returned La Spezia in March 1939.

Her duties in 1942 were much as before, but with aggressive actions against Allied convoys, including the Operations Harpoon and Vigorous, in June, to resupply the British controlled island of Malta.

[3] In 1943, Duca d'Aosta was inactive due to fuel shortages for most of the remainder of the year, but in August, she attempted, unsuccessfully, a bombardment of Allied positions around Palermo.