Alessandro Costantini (c. 1581âÂÂ1583 in Staffolo â 20 October 1657 in Rome) was an Italian baroque composer, maestro di cappella at the Collegium Germanicum. His surviving works include several Latin motets.
He and his brother, the composer , were pupils of Giovanni Bernardino Nanino. His brother-in-law was the countertenor , whose sons, the composers Vincenzo Albrici and , were his nephews.