Alessandro Melani (February 4, 1639 – October 3, 1703) was an Italian composer and the brother of composer Jacopo Melani, and castrato singer Atto Melani.
Along with Bernardo Pasquini and Alessandro Scarlatti, he was one of the leading composers active in Rome during the 17th century. He is also ranked among the second school of Roman opera composers which began with his brother’s 1668 opera Il Girello. He is chiefly remembered today for his large output of liturgical music that he wrote while serving in various musical posts in Rome. Of particular interest is the large number of polychoral motets that he produced and his eight ascribed oratorios. Three published collections of his liturgical music survive today along with numerous solitary motets from other published volumes. A number of original manuscripts also survive.