Fierrabras, D 796, is a three-act German opera with spoken dialogue written by the composer Franz Schubert in 1823, to a libretto by Joseph Kupelwieser, the general manager of the Theater am Kärntnertor. Along with the earlier Alfonso und Estrella, composed in 1822, it marks Schubert's attempt to compose a grand Romantic opera in German, departing from the Singspiel tradition. It had to wait until 1897 for a (relatively) complete performance.

Franz Peter Schubert was an Austrian composer of the late Classical and early Romantic eras. Despite his short life, Schubert left behind a vast oeuvre, including more than 600 secular vocal works, seven complete symphonies, sacred music, operas, incidental music, and a large body of piano and chamber music. His major works include the art songs "Erlkönig", "Gretchen am Spinnrade", "Ave Maria"; the Trout Quintet, the unfinished Symphony No. 8 in B minor, the "Great" Symphony No. 9 in C major, the String Quartet No. 14 Death and the Maiden, a String Quintet, the two sets of Impromptus for solo piano, the three last piano sonatas, the Fantasia in F minor for piano four hands, the opera Fierrabras, the incidental music to the play Rosamunde, and the song cycles Die schöne Müllerin, Winterreise and Schwanengesang.