Prince Amedeo, 3rd Duke of Aosta (Amedeo Umberto Isabella Luigi Filippo Maria Giuseppe Giovanni di Savoia-Aosta; 21 October 1898 – 3 March 1942) was the third Duke of Aosta and a first cousin, once removed of the King of Italy, Victor Emmanuel III.
During World War II, he was the Italian Viceroy of Italian East Africa (Africa Orientale Italiana, or AOI).