Sondra Radvanovsky (born April 11, 1969) is an American-Canadian soprano. Specializing in 19th-century Italian opera, Radvanovsky has been called one of the leading Verdi sopranos of her generation. Her signature roles include Elvira in Ernani, Leonora in Il trovatore, Elena in I vespri siciliani, Élisabeth in Don Carlos, and the title role in Norma.