Gaston Rivero (February 6, 1978 in Montevideo, Uruguay) is an Uruguayan-US American operatic tenor. He is a winner of the Hans Gabor Belvedere Singing Competition in Vienna 2009, has appeared in many opera houses, including Théâtre Royal de la Monnaie Bruxelles, Arena di Verona, Teatro Regio Torino, Royal Opera House Muscat, Staatsoper Berlin, Opéra National de Paris Bastille, Opéra de Monte-Carlo, Deutsche Oper Berlin, New National Theatre Tokyo, Oper Leipzig, as well as on Broadway and off Broadway shows.