Alessandra Melucco Vaccaro (4 April 1940 in Rome – 29 August 2000 in Rome) was an Italian historian and archaeologist.
Her main activity was in the three fields in which she made significant innovations - the High Middle Ages, archaeological restoration, and environment and landscape.
President Carlo Azeglio Ciampi conferred the Medaglia d'Oro for culture and art in Vaccaro's memory in February 2001.