 Giulio Acquaviva d'Aragona (1546–1574) was an Italian Roman Catholic cardinal.Giulio Acquaviva d'Aragona was born in Naples in 1546, the son of patricians Giangirolamo Acquaviva d'Aragona, (great-grandson of Andrea Matteo Acquaviva, 8th Duke of Atri).His mother was Margherita Pio di Carpi.