Alessandro Costantini (ca. 1581–1583, Staffolo – 20 October 1657, Rome) was an Italian baroque composer, maestro di cappella at the Collegium Germanicum.
Alessandro Manzoni | Alessandro Volta | Alessandro Scarlatti | Alessandro Farnese | Alessandro Mendini | Alessandro Ballan | Alessandro Safina | Alessandro Del Piero | Alessandro Cagliostro | Alessandro Baricco | Alessandro | Alessandro Ripellino | Alessandro Magnasco | Alessandro Gherardini | Alessandro Barsanti | Pierre Costantini | Alessandro Vespignani | Alessandro Talotti | Alessandro Riguccini | Alessandro Peretti di Montalto | Alessandro Pasqualini | Alessandro Mussolini | Alessandro Malaspina | Alessandro Haber | Alessandro Grandi | Alessandro Galilei | Alessandro Farnese (cardinal) | Alessandro Deljavan | Alessandro Cesarini | Alessandro Bonci |