Bonaldo Giaiotti (born 25 December 1932) is an Italian operatic bass, particularly associated with the Italian repertory. Born in Udine, he studied in his native city and later in Milan with Alfredo Starno, where he made his debut at the Teatro Nuovo in 1957. After singing with success in various opera houses in Italy, he made his American debut in Cincinnati, as Basilio in Il barbiere di Siviglia, in 1959. The following year, on 24 October 1960, he made his debut at the Metropolitan Opera in New York, and remained with the company for 25 years, singing some 30 roles in over 300 performances, most often as Raimondo in Lucia di Lammermoor, Ramfis in Aida, Timur in Turandot. Other roles included; Padre Guardiano in La forza del destino, Phillip II in Don Carlo, Ferrando in Il trovatore, Miller in Luisa Miller, Zaccaria in Nabucco, Giorgio in I puritani, Alvise in La Gioconda, King Heinrich in Lohengrin, etc.