Alberto de Angelis (1885–1965) was an Italian historian and musicologist, mostly remembered for writing a biography of composer and choir master Domenico Mustafà. The book, entitled Domenico Mustafa – La Cappella Sistina e la Società Musicale Romana,[1] was published in 1926, and is considered of significant importance for its valuable account of Mustafa's life, the musical society in Rome, and castrati singers at the Capella Sistina.