William Matteuzzi (born 12 December 1957 in Bologna, Italy) is an Italian operatic tenor renowned for his impressive vocal range and prominent upper register, reaching a high F (above the tenor high C) in full voice, which enabled him to participate in the recent revival of the tenore contraltino repertoire. He is also admired as a fine musician and elegant vocalist. He won the Enrico Caruso Singing Competition in 1980, which led him to Teatro alla Scala.