Herbert John Handt was an American operatic tenor and later conductor, particularly known for his conducting and editions of rarely performed Italian scores. Handt was born in Philadelphia, Pennsylvania, and studied at the Juilliard School of Music and the Vienna Academy of Music. He made his debut as a singer at the Vienna State Opera in 1949 and his debut as a conductor in Rome in 1960. In the U.S., he sang with Arturo Toscanini conducting.