Polish bass Rafał Siwek is internationally celebrated for his noble timbre, vocal depth, and dramatic command across the grand bass repertoire. In the 2025–26 season, he returns to the Royal Ballet and Opera as Timur Turandot, appears as Tiresias Jocasta's Line with the Norwegian National Opera, and reprises key roles at the Polish National Opera, including Zaccaria Nabucco, Fiesco Simon Boccanegra, and Frère Laurent Roméo et Juliette.

Siwek’s recent seasons have included Zaccaria Nabucco and Ramfis Aida at the Arena di Verona, Bayerische Staatsoper, and Teatro di San Carlo, and Il Grande Inquisitore Don Carlo at Teatro alla Scala, Bayerische Staatsoper, Staatsoper Berlin, and Teatro Real Madrid. He sang Padre Guardiano La forza del destino with Opéra national de Paris, and made house debuts at the Royal Ballet and Opera and Semperoper Dresden as Vodník Rusalka.

He has also returned to Teatro Colón Buenos Aires as Sarastro Die Zauberflöte and as Zaccaria, performed Mefistofele at Teatro Lirico di Cagliari, and appeared at the Polish National Opera as Creonte Medea. Other major appearances include Boris Godunov and Ivan the Terrible at the Bolshoi Theatre Moscow, Sarastro at Teatro alla Scala, Il Commendatore Don Giovanni and Timur Turandot at the Arena di Verona, König Marke Tristan und Isolde at Teatro dell’Opera di Roma, and Oroveso Norma at Teatro Comunale di Bologna.

He has sung Colline La bohème and Ferrando Il trovatore at the Teatro del Maggio Musicale Fiorentino, Jacopo Fiesco at the Polish National Opera, and Il Commendatore at Lublin Opera. In concert, he performed Mahler’s Symphony No. 8 with the Silesian Philharmonic.

Siwek’s concert career includes performances under Lorin Maazel in Verdi’s Messa da Requiem and Beethoven’s Symphony No. 9 across Europe and the Middle East, and under Zubin Mehta at the Accademia di Santa Cecilia and Maggio Musicale Fiorentino. He has also appeared in Rossini’s Stabat Mater in Verona with Alberto Zedda, and as Thibaut d’Arc The Maid of Orleans at the Concertgebouw Amsterdam.