Alfredo Kraus Trujillo (Spanish pronunciation: [alˈfɾeðo kɾaus tɾuˈxiʎo]; 24 November 1927 – 10 September 1999) was a distinguished Spanish tenor from the Canary islands, particularly known for the artistry he brought to opera's bel canto roles. He was also considered an outstanding interpreter of the title role in Massenet's opera Werther, and especially of its famous aria, "Pourquoi me réveiller?"
Kraus was born in Las Palmas de Gran Canaria in the Canary Islands of Spain. His father was Austrian and his mother was Spanish. He began his musical career with piano lessons at the age of four, and he sang in the school choir by age eight. His older brother, Francisco Kraus Trujillo, a baritone, studied music and opera alongside him.
After refining his technique singing Spanish zarzuela on stage in Madrid and Barcelona, Kraus made his professional opera debut in Cairo during 1956 as the Duke in Rigoletto, which became one of his signature roles. In 1958, he sang Alfredo at the Teatro Nacional de São Carlos in Lisbon in a production of La traviata with Maria Callas, a live recording of which was later released.
Kraus made his Covent Garden debut as Edgardo in Lucia di Lammermoor in 1959 and his La Scala debut as Elvino in La sonnambula in 1960. He made his American debut with Lyric Opera of Chicago in 1962, and his Metropolitan Opera debut in 1966 in Rigoletto, the role of his last performance there in 1994.