Daniela Barcellona, born on March 28, 1969, in Trieste, Italy, is an operatic mezzo-soprano. She completed her musical studies under Alessandro Vitiello and married him in 1998. Barcellona's career began with notable awards, including the “Adriano Belli” award in Spoleto, the “Iris Adami Corradetti” award in Padua, and the “Pavarotti International Voice Competition” in Philadelphia. She debuted in the title role of Tancredi at the Rossini Opera Festival in Pesaro in 1999. In the early 2000s, Barcellona performed at prestigious venues such as New York's Metropolitan Opera, La Scala in Milan, and the Royal Opera House in London. Notable roles include Dido in Berlioz's Les Troyens, conducted by Valery Gergiev in 2010. She won a Laurence Olivier Award in 2018 for her performance of Rossini's Semiramide alongside Joyce DiDonato.