Dimitrij is an opera by Antonín Dvořák in 4 acts, set to a libretto by Marie Červinková-Riegrová. More specifically, it belongs to the genre of Grand opera. Dvořák began composition during May 1881, with an interruption in October 1881 to write a string quartet for the Hellmesberger Quartet. After an initial failed attempt, the quartet was completed in November 1881, allowing work on the opera to resume. The work was first performed in Prague, at the Nové České Divadlo (New Czech Theatre) on October 8, 1882. The work was first performed in the United States on March 24, 1984 in a concert format presented at Carnegie Hall in New York City by conductor Robert Bass and the Collegiate Chorale with Martina Arroyo as Marina.