Orchestr Národního divadla is the resident orchestra of the National Theatre in Prague, Czech Republic, with roots in the theatre's musical establishment dating back to the 19th century and a primary focus on classical repertoire and theatrical accompaniment for opera and ballet. Its repertoire encompasses Czech and international works — from operatic and ballet scores to symphonic concerts — and the ensemble has supported the National Theatre's presentation of Czech operatic and ballet traditions while also performing contemporary Czech compositions.