The bass-baritone Miklós Sebestyén was born in Budapest, Hungary. In the early years of his musical education he played various instruments - flute, guitar, piano - until he decided to choose singing as his profession.
He studied with Prof. László Polgár in Zürich and with Prof. Josef Loibl in Munich.
Already during his studies he worked in several opera productions in Europe (Zurich, Basel, Winterthur, Torino, Monte Carlo, Budapest etc.) and in various opera houses (Nürnberg Opera, Staatstheater am Gaertnerplatz in Munich, Leipzig Opera, Prinzregententheater Munich)

In 2010 he won 3rd prize in the Belvedere Singing Competition in Vienna.

After his success at the competition he sang at various great opera houses, such as the Deutsche Oper am Rhein, Komische Oper Berlin, Oper Leipzig, Staatstheater Nürnberg.

He made his debut at the Metropolitan Opera New York in 2012 as the King of Egypt in Verdi's Aida, a production which was broadcast on "Live HD from the MET" in cinemas all over the world. Also at the Met he sang the Friar (Frate) in Don Carlo in 2013.
He had great success in Vienna in a new production of Berlioz's "Béatrice et Bénedict" directed by Casper Holten.
June 2013 he made his debut at the internationally renowned Wagner Festival in Budapest, as Kothner in the new production of Meistersinger von Nürnberg, conducted by Adam Fischer.
2014 he sang the title-role in Rossini's Mosé in Egitto at the Welsh National Opera in Cardiff, directed by David Pountney, conducted by Carlo Rizzi.
2015 he will make his debut at La Scala di Milano in the world premiere of Giorgio Battistelli's opera, CO2.

Future engagements will take him to opera houses in Montréal, Taiwan, Nancy, Cardiff, Budapest et. al.

His major roles include Mozart's Figaro (Le Nozze), Leporello, Masetto, Commendatore (Don Giovanni) Sarastro, Sprecher (The Magic Flute), Don Alfonso (Cosi fan tutte); Ercole (Händel: Admeto), Mustafa (Rossini: L'Italiana in Algeri), Enrico VIII (Donizetti: Anna Bolena), Stefanno Colonna (Wagner: Rienzi), Prince Gremin (Tchaikovsky: Eugene Onegin), Colline, Schaunard (Puccini: La Bohéme), Ferrando (Verdi: Il trovatore), Sparafucile (Rigoletto), Il Re (Aida), Kothner (Wagner: Meistersinger) Celio (Prokofiev: The Love for Three Oranges), Priest (Schönberg: Moses and Aron)

He worked with great conductors of our time, such as Fabio Luisi, Adam Fischer, Lorin Maazel, Riccardo Chailly, Ulf Schirmer u.a.

With various oratorios of J. S. Bach, Mozart, Händel, Haydn, Beethoven, Paul Ben Haim, Stravinsky; and with songs of Schubert, Schumann, Brahms, Wolf, Mussorgsky he has established himself as a concert singer as well.